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Finding the Fourth Proportional to 637,953,411, 880,376,061.42 and 344,597,981.88

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Solution

The fourth proportional to 637,953,411, 880,376,061.42 and 344,597,981.88 is: 475,545,406.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,953,411 : 880,376,061.42 = 344,597,981.88 : x
  2. Step 2: Convert to fraction form
    637,953,411/880,376,061.42 = 344,597,981.88/x
  3. Step 3: Cross multiply
    637,953,411x = 880,376,061.42 × 344,597,981.88
  4. Step 4: Simplify right side
    637,953,411x = 303,375,814,060,794,880
  5. Step 5: Solve for x
    x = 303,375,814,060,794,880/637,953,411
  6. Step 6: Final answer
    x = 475,545,406.34

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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.