Home / 917,732,115.50-1,266,470,501.62-500,044,400.78

Finding the Fourth Proportional to 917,732,115.50, 1,266,470,501.62 and 500,044,400.78

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Solution

The fourth proportional to 917,732,115.50, 1,266,470,501.62 and 500,044,400.78 is: 690,061,372.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,732,115.50 : 1,266,470,501.62 = 500,044,400.78 : x
  2. Step 2: Convert to fraction form
    917,732,115.50/1,266,470,501.62 = 500,044,400.78/x
  3. Step 3: Cross multiply
    917,732,115.50x = 1,266,470,501.62 × 500,044,400.78
  4. Step 4: Simplify right side
    917,732,115.50x = 633,291,483,088,118,784
  5. Step 5: Solve for x
    x = 633,291,483,088,118,784/917,732,115.50
  6. Step 6: Final answer
    x = 690,061,372.37

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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.