Home / 411,872,827.20-617,799,794.40-207,345,979.20

Finding the Fourth Proportional to 411,872,827.20, 617,799,794.40 and 207,345,979.20

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Solution

The fourth proportional to 411,872,827.20, 617,799,794.40 and 207,345,979.20 is: 311,014,213.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,872,827.20 : 617,799,794.40 = 207,345,979.20 : x
  2. Step 2: Convert to fraction form
    411,872,827.20/617,799,794.40 = 207,345,979.20/x
  3. Step 3: Cross multiply
    411,872,827.20x = 617,799,794.40 × 207,345,979.20
  4. Step 4: Simplify right side
    411,872,827.20x = 128,098,303,319,426,672
  5. Step 5: Solve for x
    x = 128,098,303,319,426,672/411,872,827.20
  6. Step 6: Final answer
    x = 311,014,213.27

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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.