Home / 218,784,016.80-328,176,025.20-89,306,618.40

Finding the Fourth Proportional to 218,784,016.80, 328,176,025.20 and 89,306,618.40

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Solution

The fourth proportional to 218,784,016.80, 328,176,025.20 and 89,306,618.40 is: 133,959,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,784,016.80 : 328,176,025.20 = 89,306,618.40 : x
  2. Step 2: Convert to fraction form
    218,784,016.80/328,176,025.20 = 89,306,618.40/x
  3. Step 3: Cross multiply
    218,784,016.80x = 328,176,025.20 × 89,306,618.40
  4. Step 4: Simplify right side
    218,784,016.80x = 29,308,291,050,565,184
  5. Step 5: Solve for x
    x = 29,308,291,050,565,184/218,784,016.80
  6. Step 6: Final answer
    x = 133,959,927.60

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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.