Home / 645,955,998.10-967,779,261.15-393,103,806.10

Finding the Fourth Proportional to 645,955,998.10, 967,779,261.15 and 393,103,806.10

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Solution

The fourth proportional to 645,955,998.10, 967,779,261.15 and 393,103,806.10 is: 588,952,981.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,955,998.10 : 967,779,261.15 = 393,103,806.10 : x
  2. Step 2: Convert to fraction form
    645,955,998.10/967,779,261.15 = 393,103,806.10/x
  3. Step 3: Cross multiply
    645,955,998.10x = 967,779,261.15 × 393,103,806.10
  4. Step 4: Simplify right side
    645,955,998.10x = 380,437,711,022,710,848
  5. Step 5: Solve for x
    x = 380,437,711,022,710,848/645,955,998.10
  6. Step 6: Final answer
    x = 588,952,981.54

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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.