Home / 131,179,278.40-196,887,890.40-66,528,059.20

Finding the Fourth Proportional to 131,179,278.40, 196,887,890.40 and 66,528,059.20

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Solution

The fourth proportional to 131,179,278.40, 196,887,890.40 and 66,528,059.20 is: 99,852,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,179,278.40 : 196,887,890.40 = 66,528,059.20 : x
  2. Step 2: Convert to fraction form
    131,179,278.40/196,887,890.40 = 66,528,059.20/x
  3. Step 3: Cross multiply
    131,179,278.40x = 196,887,890.40 × 66,528,059.20
  4. Step 4: Simplify right side
    131,179,278.40x = 13,098,569,228,294,312
  5. Step 5: Solve for x
    x = 13,098,569,228,294,312/131,179,278.40
  6. Step 6: Final answer
    x = 99,852,426.30

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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.