Home / 141,660,287.47-212,329,244.16-86,205,815.35

Finding the Fourth Proportional to 141,660,287.47, 212,329,244.16 and 86,205,815.35

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Solution

The fourth proportional to 141,660,287.47, 212,329,244.16 and 86,205,815.35 is: 129,210,634.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,660,287.47 : 212,329,244.16 = 86,205,815.35 : x
  2. Step 2: Convert to fraction form
    141,660,287.47/212,329,244.16 = 86,205,815.35/x
  3. Step 3: Cross multiply
    141,660,287.47x = 212,329,244.16 × 86,205,815.35
  4. Step 4: Simplify right side
    141,660,287.47x = 18,304,015,615,462,024
  5. Step 5: Solve for x
    x = 18,304,015,615,462,024/141,660,287.47
  6. Step 6: Final answer
    x = 129,210,634.42

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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.