Home / 722,636,892.12-997,238,909.67-409,371,105.67

Finding the Fourth Proportional to 722,636,892.12, 997,238,909.67 and 409,371,105.67

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Solution

The fourth proportional to 722,636,892.12, 997,238,909.67 and 409,371,105.67 is: 564,932,125.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,636,892.12 : 997,238,909.67 = 409,371,105.67 : x
  2. Step 2: Convert to fraction form
    722,636,892.12/997,238,909.67 = 409,371,105.67/x
  3. Step 3: Cross multiply
    722,636,892.12x = 997,238,909.67 × 409,371,105.67
  4. Step 4: Simplify right side
    722,636,892.12x = 408,240,795,068,753,152
  5. Step 5: Solve for x
    x = 408,240,795,068,753,152/722,636,892.12
  6. Step 6: Final answer
    x = 564,932,125.00

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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.