Home / 145,161,031.60-217,760,209.80-72,414,996.40

Finding the Fourth Proportional to 145,161,031.60, 217,760,209.80 and 72,414,996.40

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Solution

The fourth proportional to 145,161,031.60, 217,760,209.80 and 72,414,996.40 is: 108,631,804.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,161,031.60 : 217,760,209.80 = 72,414,996.40 : x
  2. Step 2: Convert to fraction form
    145,161,031.60/217,760,209.80 = 72,414,996.40/x
  3. Step 3: Cross multiply
    145,161,031.60x = 217,760,209.80 × 72,414,996.40
  4. Step 4: Simplify right side
    145,161,031.60x = 15,769,104,808,730,246
  5. Step 5: Solve for x
    x = 15,769,104,808,730,246/145,161,031.60
  6. Step 6: Final answer
    x = 108,631,804.52

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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.