Home / 72,260,288.13-99,717,946.38-39,219,828.15

Finding the Fourth Proportional to 72,260,288.13, 99,717,946.38 and 39,219,828.15

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Solution

The fourth proportional to 72,260,288.13, 99,717,946.38 and 39,219,828.15 is: 54,122,683.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,260,288.13 : 99,717,946.38 = 39,219,828.15 : x
  2. Step 2: Convert to fraction form
    72,260,288.13/99,717,946.38 = 39,219,828.15/x
  3. Step 3: Cross multiply
    72,260,288.13x = 99,717,946.38 × 39,219,828.15
  4. Step 4: Simplify right side
    72,260,288.13x = 3,910,920,720,494,514.50
  5. Step 5: Solve for x
    x = 3,910,920,720,494,514.50/72,260,288.13
  6. Step 6: Final answer
    x = 54,122,683.73

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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.