Home / 100,282,668.79-138,339,151-65,495,721.91

Finding the Fourth Proportional to 100,282,668.79, 138,339,151 and 65,495,721.91

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Solution

The fourth proportional to 100,282,668.79, 138,339,151 and 65,495,721.91 is: 90,350,832.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,282,668.79 : 138,339,151 = 65,495,721.91 : x
  2. Step 2: Convert to fraction form
    100,282,668.79/138,339,151 = 65,495,721.91/x
  3. Step 3: Cross multiply
    100,282,668.79x = 138,339,151 × 65,495,721.91
  4. Step 4: Simplify right side
    100,282,668.79x = 9,060,622,563,161,498
  5. Step 5: Solve for x
    x = 9,060,622,563,161,498/100,282,668.79
  6. Step 6: Final answer
    x = 90,350,832.03

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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.