Home / 690,737,167.72-953,229,817.38-377,484,636.52

Finding the Fourth Proportional to 690,737,167.72, 953,229,817.38 and 377,484,636.52

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Solution

The fourth proportional to 690,737,167.72, 953,229,817.38 and 377,484,636.52 is: 520,935,643.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,737,167.72 : 953,229,817.38 = 377,484,636.52 : x
  2. Step 2: Convert to fraction form
    690,737,167.72/953,229,817.38 = 377,484,636.52/x
  3. Step 3: Cross multiply
    690,737,167.72x = 953,229,817.38 × 377,484,636.52
  4. Step 4: Simplify right side
    690,737,167.72x = 359,829,611,133,715,264
  5. Step 5: Solve for x
    x = 359,829,611,133,715,264/690,737,167.72
  6. Step 6: Final answer
    x = 520,935,643.76

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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.