Home / 693,041,729.84-956,444,510.88-391,522,465.11

Finding the Fourth Proportional to 693,041,729.84, 956,444,510.88 and 391,522,465.11

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Solution

The fourth proportional to 693,041,729.84, 956,444,510.88 and 391,522,465.11 is: 540,327,510.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,041,729.84 : 956,444,510.88 = 391,522,465.11 : x
  2. Step 2: Convert to fraction form
    693,041,729.84/956,444,510.88 = 391,522,465.11/x
  3. Step 3: Cross multiply
    693,041,729.84x = 956,444,510.88 × 391,522,465.11
  4. Step 4: Simplify right side
    693,041,729.84x = 374,469,512,640,665,856
  5. Step 5: Solve for x
    x = 374,469,512,640,665,856/693,041,729.84
  6. Step 6: Final answer
    x = 540,327,510.62

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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.