Home / 124,551,837.90-186,827,756.85-81,553,668.30

Finding the Fourth Proportional to 124,551,837.90, 186,827,756.85 and 81,553,668.30

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Solution

The fourth proportional to 124,551,837.90, 186,827,756.85 and 81,553,668.30 is: 122,330,502.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,551,837.90 : 186,827,756.85 = 81,553,668.30 : x
  2. Step 2: Convert to fraction form
    124,551,837.90/186,827,756.85 = 81,553,668.30/x
  3. Step 3: Cross multiply
    124,551,837.90x = 186,827,756.85 × 81,553,668.30
  4. Step 4: Simplify right side
    124,551,837.90x = 15,236,488,911,377,952
  5. Step 5: Solve for x
    x = 15,236,488,911,377,952/124,551,837.90
  6. Step 6: Final answer
    x = 122,330,502.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.