Home / 121,937,385.56-168,273,776.84-66,182,826.32

Finding the Fourth Proportional to 121,937,385.56, 168,273,776.84 and 66,182,826.32

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Solution

The fourth proportional to 121,937,385.56, 168,273,776.84 and 66,182,826.32 is: 91,332,400.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,937,385.56 : 168,273,776.84 = 66,182,826.32 : x
  2. Step 2: Convert to fraction form
    121,937,385.56/168,273,776.84 = 66,182,826.32/x
  3. Step 3: Cross multiply
    121,937,385.56x = 168,273,776.84 × 66,182,826.32
  4. Step 4: Simplify right side
    121,937,385.56x = 11,136,834,145,639,876
  5. Step 5: Solve for x
    x = 11,136,834,145,639,876/121,937,385.56
  6. Step 6: Final answer
    x = 91,332,400.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.