Home / 142,463,988.80-213,625,221.52-45,407,067.20

Finding the Fourth Proportional to 142,463,988.80, 213,625,221.52 and 45,407,067.20

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Solution

The fourth proportional to 142,463,988.80, 213,625,221.52 and 45,407,067.20 is: 68,088,047.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,463,988.80 : 213,625,221.52 = 45,407,067.20 : x
  2. Step 2: Convert to fraction form
    142,463,988.80/213,625,221.52 = 45,407,067.20/x
  3. Step 3: Cross multiply
    142,463,988.80x = 213,625,221.52 × 45,407,067.20
  4. Step 4: Simplify right side
    142,463,988.80x = 9,700,094,789,173,528
  5. Step 5: Solve for x
    x = 9,700,094,789,173,528/142,463,988.80
  6. Step 6: Final answer
    x = 68,088,047.17

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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.