Home / 722,636,891.12-997,238,908.29-409,371,104.67

Finding the Fourth Proportional to 722,636,891.12, 997,238,908.29 and 409,371,104.67

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Solution

The fourth proportional to 722,636,891.12, 997,238,908.29 and 409,371,104.67 is: 564,932,123.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,636,891.12 : 997,238,908.29 = 409,371,104.67 : x
  2. Step 2: Convert to fraction form
    722,636,891.12/997,238,908.29 = 409,371,104.67/x
  3. Step 3: Cross multiply
    722,636,891.12x = 997,238,908.29 × 409,371,104.67
  4. Step 4: Simplify right side
    722,636,891.12x = 408,240,793,506,582,144
  5. Step 5: Solve for x
    x = 408,240,793,506,582,144/722,636,891.12
  6. Step 6: Final answer
    x = 564,932,123.62

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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.