Home / 917,732,116.50-1,266,470,503-500,044,401.78

Finding the Fourth Proportional to 917,732,116.50, 1,266,470,503 and 500,044,401.78

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Solution

The fourth proportional to 917,732,116.50, 1,266,470,503 and 500,044,401.78 is: 690,061,373.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,732,116.50 : 1,266,470,503 = 500,044,401.78 : x
  2. Step 2: Convert to fraction form
    917,732,116.50/1,266,470,503 = 500,044,401.78/x
  3. Step 3: Cross multiply
    917,732,116.50x = 1,266,470,503 × 500,044,401.78
  4. Step 4: Simplify right side
    917,732,116.50x = 633,291,485,044,650,624
  5. Step 5: Solve for x
    x = 633,291,485,044,650,624/917,732,116.50
  6. Step 6: Final answer
    x = 690,061,373.75

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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.