Home / 81,427,729.80-122,159,309.40-26,831,024.40

Finding the Fourth Proportional to 81,427,729.80, 122,159,309.40 and 26,831,024.40

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Solution

The fourth proportional to 81,427,729.80, 122,159,309.40 and 26,831,024.40 is: 40,252,373.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,427,729.80 : 122,159,309.40 = 26,831,024.40 : x
  2. Step 2: Convert to fraction form
    81,427,729.80/122,159,309.40 = 26,831,024.40/x
  3. Step 3: Cross multiply
    81,427,729.80x = 122,159,309.40 × 26,831,024.40
  4. Step 4: Simplify right side
    81,427,729.80x = 3,277,659,411,198,549.50
  5. Step 5: Solve for x
    x = 3,277,659,411,198,549.50/81,427,729.80
  6. Step 6: Final answer
    x = 40,252,373.72

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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.