Home / 1,021,001,465.70-1,531,502,198.55-998,326,649.70

Finding the Fourth Proportional to 1,021,001,465.70, 1,531,502,198.55 and 998,326,649.70

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Solution

The fourth proportional to 1,021,001,465.70, 1,531,502,198.55 and 998,326,649.70 is: 1,497,489,974.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,001,465.70 : 1,531,502,198.55 = 998,326,649.70 : x
  2. Step 2: Convert to fraction form
    1,021,001,465.70/1,531,502,198.55 = 998,326,649.70/x
  3. Step 3: Cross multiply
    1,021,001,465.70x = 1,531,502,198.55 × 998,326,649.70
  4. Step 4: Simplify right side
    1,021,001,465.70x = 1,528,939,458,886,605,824
  5. Step 5: Solve for x
    x = 1,528,939,458,886,605,824/1,021,001,465.70
  6. Step 6: Final answer
    x = 1,497,489,974.55

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.