Home / 280,520,061.60-420,780,092.40-127,465,053.60

Finding the Fourth Proportional to 280,520,061.60, 420,780,092.40 and 127,465,053.60

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Solution

The fourth proportional to 280,520,061.60, 420,780,092.40 and 127,465,053.60 is: 191,197,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,520,061.60 : 420,780,092.40 = 127,465,053.60 : x
  2. Step 2: Convert to fraction form
    280,520,061.60/420,780,092.40 = 127,465,053.60/x
  3. Step 3: Cross multiply
    280,520,061.60x = 420,780,092.40 × 127,465,053.60
  4. Step 4: Simplify right side
    280,520,061.60x = 53,634,757,031,578,944
  5. Step 5: Solve for x
    x = 53,634,757,031,578,944/280,520,061.60
  6. Step 6: Final answer
    x = 191,197,580.40

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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.