Home / 218,784,017.80-328,176,026.70-89,306,619.40

Finding the Fourth Proportional to 218,784,017.80, 328,176,026.70 and 89,306,619.40

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Solution

The fourth proportional to 218,784,017.80, 328,176,026.70 and 89,306,619.40 is: 133,959,929.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,784,017.80 : 328,176,026.70 = 89,306,619.40 : x
  2. Step 2: Convert to fraction form
    218,784,017.80/328,176,026.70 = 89,306,619.40/x
  3. Step 3: Cross multiply
    218,784,017.80x = 328,176,026.70 × 89,306,619.40
  4. Step 4: Simplify right side
    218,784,017.80x = 29,308,291,512,701,140
  5. Step 5: Solve for x
    x = 29,308,291,512,701,140/218,784,017.80
  6. Step 6: Final answer
    x = 133,959,929.10

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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.