Home / 674,496,007.70-1,011,744,011.55-521,440,999.70

Finding the Fourth Proportional to 674,496,007.70, 1,011,744,011.55 and 521,440,999.70

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Solution

The fourth proportional to 674,496,007.70, 1,011,744,011.55 and 521,440,999.70 is: 782,161,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,496,007.70 : 1,011,744,011.55 = 521,440,999.70 : x
  2. Step 2: Convert to fraction form
    674,496,007.70/1,011,744,011.55 = 521,440,999.70/x
  3. Step 3: Cross multiply
    674,496,007.70x = 1,011,744,011.55 × 521,440,999.70
  4. Step 4: Simplify right side
    674,496,007.70x = 527,564,808,823,120,320
  5. Step 5: Solve for x
    x = 527,564,808,823,120,320/674,496,007.70
  6. Step 6: Final answer
    x = 782,161,499.55

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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.