Home / 928,087,415.72-1,280,735,052.90-510,399,690.92

Finding the Fourth Proportional to 928,087,415.72, 1,280,735,052.90 and 510,399,690.92

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Solution

The fourth proportional to 928,087,415.72, 1,280,735,052.90 and 510,399,690.92 is: 704,337,505.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,087,415.72 : 1,280,735,052.90 = 510,399,690.92 : x
  2. Step 2: Convert to fraction form
    928,087,415.72/1,280,735,052.90 = 510,399,690.92/x
  3. Step 3: Cross multiply
    928,087,415.72x = 1,280,735,052.90 × 510,399,690.92
  4. Step 4: Simplify right side
    928,087,415.72x = 653,686,775,150,569,856
  5. Step 5: Solve for x
    x = 653,686,775,150,569,856/928,087,415.72
  6. Step 6: Final answer
    x = 704,337,505.37

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.