Home / 272,060,431.20-408,090,646.80-261,478,850.40

Finding the Fourth Proportional to 272,060,431.20, 408,090,646.80 and 261,478,850.40

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Solution

The fourth proportional to 272,060,431.20, 408,090,646.80 and 261,478,850.40 is: 392,218,275.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,060,431.20 : 408,090,646.80 = 261,478,850.40 : x
  2. Step 2: Convert to fraction form
    272,060,431.20/408,090,646.80 = 261,478,850.40/x
  3. Step 3: Cross multiply
    272,060,431.20x = 408,090,646.80 × 261,478,850.40
  4. Step 4: Simplify right side
    272,060,431.20x = 106,707,073,184,256,448
  5. Step 5: Solve for x
    x = 106,707,073,184,256,448/272,060,431.20
  6. Step 6: Final answer
    x = 392,218,275.60

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1.5x scale

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.