Home / 2,985,988,511.70-4,478,982,767.55-915,693,830.10

Finding the Fourth Proportional to 2,985,988,511.70, 4,478,982,767.55 and 915,693,830.10

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Solution

The fourth proportional to 2,985,988,511.70, 4,478,982,767.55 and 915,693,830.10 is: 1,373,540,745.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985,988,511.70 : 4,478,982,767.55 = 915,693,830.10 : x
  2. Step 2: Convert to fraction form
    2,985,988,511.70/4,478,982,767.55 = 915,693,830.10/x
  3. Step 3: Cross multiply
    2,985,988,511.70x = 4,478,982,767.55 × 915,693,830.10
  4. Step 4: Simplify right side
    2,985,988,511.70x = 4,101,376,885,369,757,696
  5. Step 5: Solve for x
    x = 4,101,376,885,369,757,696/2,985,988,511.70
  6. Step 6: Final answer
    x = 1,373,540,745.15

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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.