Home / 145,156,818.40-218,059,630.80-121,268,946.40

Finding the Fourth Proportional to 145,156,818.40, 218,059,630.80 and 121,268,946.40

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Solution

The fourth proportional to 145,156,818.40, 218,059,630.80 and 121,268,946.40 is: 182,174,437.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156,818.40 : 218,059,630.80 = 121,268,946.40 : x
  2. Step 2: Convert to fraction form
    145,156,818.40/218,059,630.80 = 121,268,946.40/x
  3. Step 3: Cross multiply
    145,156,818.40x = 218,059,630.80 × 121,268,946.40
  4. Step 4: Simplify right side
    145,156,818.40x = 26,443,861,679,488,992
  5. Step 5: Solve for x
    x = 26,443,861,679,488,992/145,156,818.40
  6. Step 6: Final answer
    x = 182,174,437.07

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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.