Home / 85,839,419.20-128,781,938.40-37,296,443.20

Finding the Fourth Proportional to 85,839,419.20, 128,781,938.40 and 37,296,443.20

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Solution

The fourth proportional to 85,839,419.20, 128,781,938.40 and 37,296,443.20 is: 55,954,575.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,839,419.20 : 128,781,938.40 = 37,296,443.20 : x
  2. Step 2: Convert to fraction form
    85,839,419.20/128,781,938.40 = 37,296,443.20/x
  3. Step 3: Cross multiply
    85,839,419.20x = 128,781,938.40 × 37,296,443.20
  4. Step 4: Simplify right side
    85,839,419.20x = 4,803,108,250,721,499
  5. Step 5: Solve for x
    x = 4,803,108,250,721,499/85,839,419.20
  6. Step 6: Final answer
    x = 55,954,575.36

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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.