Home / 371,016,002.40-556,524,003.60-128,678,906.40

Finding the Fourth Proportional to 371,016,002.40, 556,524,003.60 and 128,678,906.40

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Solution

The fourth proportional to 371,016,002.40, 556,524,003.60 and 128,678,906.40 is: 193,018,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,016,002.40 : 556,524,003.60 = 128,678,906.40 : x
  2. Step 2: Convert to fraction form
    371,016,002.40/556,524,003.60 = 128,678,906.40/x
  3. Step 3: Cross multiply
    371,016,002.40x = 556,524,003.60 × 128,678,906.40
  4. Step 4: Simplify right side
    371,016,002.40x = 71,612,900,168,597,672
  5. Step 5: Solve for x
    x = 71,612,900,168,597,672/371,016,002.40
  6. Step 6: Final answer
    x = 193,018,359.60

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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.