Home / 145,007,465.20-217,511,197.80-87,676,572.40

Finding the Fourth Proportional to 145,007,465.20, 217,511,197.80 and 87,676,572.40

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Solution

The fourth proportional to 145,007,465.20, 217,511,197.80 and 87,676,572.40 is: 131,514,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,007,465.20 : 217,511,197.80 = 87,676,572.40 : x
  2. Step 2: Convert to fraction form
    145,007,465.20/217,511,197.80 = 87,676,572.40/x
  3. Step 3: Cross multiply
    145,007,465.20x = 217,511,197.80 × 87,676,572.40
  4. Step 4: Simplify right side
    145,007,465.20x = 19,070,636,281,722,424
  5. Step 5: Solve for x
    x = 19,070,636,281,722,424/145,007,465.20
  6. Step 6: Final answer
    x = 131,514,858.60

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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.