Home / 905,518,229.52-1,249,620,402.08-509,037,747.96

Finding the Fourth Proportional to 905,518,229.52, 1,249,620,402.08 and 509,037,747.96

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Solution

The fourth proportional to 905,518,229.52, 1,249,620,402.08 and 509,037,747.96 is: 702,475,040.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,518,229.52 : 1,249,620,402.08 = 509,037,747.96 : x
  2. Step 2: Convert to fraction form
    905,518,229.52/1,249,620,402.08 = 509,037,747.96/x
  3. Step 3: Cross multiply
    905,518,229.52x = 1,249,620,402.08 × 509,037,747.96
  4. Step 4: Simplify right side
    905,518,229.52x = 636,103,955,279,672,832
  5. Step 5: Solve for x
    x = 636,103,955,279,672,832/905,518,229.52
  6. Step 6: Final answer
    x = 702,475,040.86

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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.