Home / 1,149,640,998.40-1,724,461,497.60-331,779,980.80

Finding the Fourth Proportional to 1,149,640,998.40, 1,724,461,497.60 and 331,779,980.80

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Solution

The fourth proportional to 1,149,640,998.40, 1,724,461,497.60 and 331,779,980.80 is: 497,669,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,640,998.40 : 1,724,461,497.60 = 331,779,980.80 : x
  2. Step 2: Convert to fraction form
    1,149,640,998.40/1,724,461,497.60 = 331,779,980.80/x
  3. Step 3: Cross multiply
    1,149,640,998.40x = 1,724,461,497.60 × 331,779,980.80
  4. Step 4: Simplify right side
    1,149,640,998.40x = 572,141,802,564,067,264
  5. Step 5: Solve for x
    x = 572,141,802,564,067,264/1,149,640,998.40
  6. Step 6: Final answer
    x = 497,669,971.20

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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.