Home / 917,732,121-1,266,470,509.22-500,044,406.28

Finding the Fourth Proportional to 917,732,121, 1,266,470,509.22 and 500,044,406.28

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Solution

The fourth proportional to 917,732,121, 1,266,470,509.22 and 500,044,406.28 is: 690,061,379.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,732,121 : 1,266,470,509.22 = 500,044,406.28 : x
  2. Step 2: Convert to fraction form
    917,732,121/1,266,470,509.22 = 500,044,406.28/x
  3. Step 3: Cross multiply
    917,732,121x = 1,266,470,509.22 × 500,044,406.28
  4. Step 4: Simplify right side
    917,732,121x = 633,291,493,854,044,160
  5. Step 5: Solve for x
    x = 633,291,493,854,044,160/917,732,121
  6. Step 6: Final answer
    x = 690,061,379.96

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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.