Home / 664,316,139.40-996,474,209.10-358,206,123.40

Finding the Fourth Proportional to 664,316,139.40, 996,474,209.10 and 358,206,123.40

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Solution

The fourth proportional to 664,316,139.40, 996,474,209.10 and 358,206,123.40 is: 537,309,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,316,139.40 : 996,474,209.10 = 358,206,123.40 : x
  2. Step 2: Convert to fraction form
    664,316,139.40/996,474,209.10 = 358,206,123.40/x
  3. Step 3: Cross multiply
    664,316,139.40x = 996,474,209.10 × 358,206,123.40
  4. Step 4: Simplify right side
    664,316,139.40x = 356,943,163,509,792,000
  5. Step 5: Solve for x
    x = 356,943,163,509,792,000/664,316,139.40
  6. Step 6: Final answer
    x = 537,309,185.10

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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.