Home / 1,121,472,003.70-1,682,208,005.55-637,742,595.70

Finding the Fourth Proportional to 1,121,472,003.70, 1,682,208,005.55 and 637,742,595.70

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Solution

The fourth proportional to 1,121,472,003.70, 1,682,208,005.55 and 637,742,595.70 is: 956,613,893.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,472,003.70 : 1,682,208,005.55 = 637,742,595.70 : x
  2. Step 2: Convert to fraction form
    1,121,472,003.70/1,682,208,005.55 = 637,742,595.70/x
  3. Step 3: Cross multiply
    1,121,472,003.70x = 1,682,208,005.55 × 637,742,595.70
  4. Step 4: Simplify right side
    1,121,472,003.70x = 1,072,815,699,966,777,088
  5. Step 5: Solve for x
    x = 1,072,815,699,966,777,088/1,121,472,003.70
  6. Step 6: Final answer
    x = 956,613,893.55

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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.