Home / 145,536,340.80-218,304,511.20-142,666,559.40

Finding the Fourth Proportional to 145,536,340.80, 218,304,511.20 and 142,666,559.40

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Solution

The fourth proportional to 145,536,340.80, 218,304,511.20 and 142,666,559.40 is: 213,999,839.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,536,340.80 : 218,304,511.20 = 142,666,559.40 : x
  2. Step 2: Convert to fraction form
    145,536,340.80/218,304,511.20 = 142,666,559.40/x
  3. Step 3: Cross multiply
    145,536,340.80x = 218,304,511.20 × 142,666,559.40
  4. Step 4: Simplify right side
    145,536,340.80x = 31,144,753,514,402,764
  5. Step 5: Solve for x
    x = 31,144,753,514,402,764/145,536,340.80
  6. Step 6: Final answer
    x = 213,999,839.10

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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.