Home / 549,072,787.62-823,608,520.46-140,128,981.86

Finding the Fourth Proportional to 549,072,787.62, 823,608,520.46 and 140,128,981.86

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Solution

The fourth proportional to 549,072,787.62, 823,608,520.46 and 140,128,981.86 is: 210,193,304.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,072,787.62 : 823,608,520.46 = 140,128,981.86 : x
  2. Step 2: Convert to fraction form
    549,072,787.62/823,608,520.46 = 140,128,981.86/x
  3. Step 3: Cross multiply
    549,072,787.62x = 823,608,520.46 × 140,128,981.86
  4. Step 4: Simplify right side
    549,072,787.62x = 115,411,423,423,280,800
  5. Step 5: Solve for x
    x = 115,411,423,423,280,800/549,072,787.62
  6. Step 6: Final answer
    x = 210,193,304.10

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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.