Home / 121,502,514.90-167,673,915-65,747,935.80

Finding the Fourth Proportional to 121,502,514.90, 167,673,915 and 65,747,935.80

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Solution

The fourth proportional to 121,502,514.90, 167,673,915 and 65,747,935.80 is: 90,732,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,502,514.90 : 167,673,915 = 65,747,935.80 : x
  2. Step 2: Convert to fraction form
    121,502,514.90/167,673,915 = 65,747,935.80/x
  3. Step 3: Cross multiply
    121,502,514.90x = 167,673,915 × 65,747,935.80
  4. Step 4: Simplify right side
    121,502,514.90x = 11,024,213,798,754,656
  5. Step 5: Solve for x
    x = 11,024,213,798,754,656/121,502,514.90
  6. Step 6: Final answer
    x = 90,732,391.90

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1.5x scale

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.