Home / 140,123,484.20-193,370,828.10-78,246,080.84

Finding the Fourth Proportional to 140,123,484.20, 193,370,828.10 and 78,246,080.84

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Solution

The fourth proportional to 140,123,484.20, 193,370,828.10 and 78,246,080.84 is: 107,979,826.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,123,484.20 : 193,370,828.10 = 78,246,080.84 : x
  2. Step 2: Convert to fraction form
    140,123,484.20/193,370,828.10 = 78,246,080.84/x
  3. Step 3: Cross multiply
    140,123,484.20x = 193,370,828.10 × 78,246,080.84
  4. Step 4: Simplify right side
    140,123,484.20x = 15,130,509,447,610,344
  5. Step 5: Solve for x
    x = 15,130,509,447,610,344/140,123,484.20
  6. Step 6: Final answer
    x = 107,979,826.04

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1.5x scale

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.