Home / 131,004,029.10-196,506,043.65-128,988,489.90

Finding the Fourth Proportional to 131,004,029.10, 196,506,043.65 and 128,988,489.90

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Solution

The fourth proportional to 131,004,029.10, 196,506,043.65 and 128,988,489.90 is: 193,482,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,004,029.10 : 196,506,043.65 = 128,988,489.90 : x
  2. Step 2: Convert to fraction form
    131,004,029.10/196,506,043.65 = 128,988,489.90/x
  3. Step 3: Cross multiply
    131,004,029.10x = 196,506,043.65 × 128,988,489.90
  4. Step 4: Simplify right side
    131,004,029.10x = 25,347,017,826,636,988
  5. Step 5: Solve for x
    x = 25,347,017,826,636,988/131,004,029.10
  6. Step 6: Final answer
    x = 193,482,734.85

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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.