Home / 126,176,421.10-189,264,631.65-68,780,793.10

Finding the Fourth Proportional to 126,176,421.10, 189,264,631.65 and 68,780,793.10

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Solution

The fourth proportional to 126,176,421.10, 189,264,631.65 and 68,780,793.10 is: 103,171,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,176,421.10 : 189,264,631.65 = 68,780,793.10 : x
  2. Step 2: Convert to fraction form
    126,176,421.10/189,264,631.65 = 68,780,793.10/x
  3. Step 3: Cross multiply
    126,176,421.10x = 189,264,631.65 × 68,780,793.10
  4. Step 4: Simplify right side
    126,176,421.10x = 13,017,771,470,666,360
  5. Step 5: Solve for x
    x = 13,017,771,470,666,360/126,176,421.10
  6. Step 6: Final answer
    x = 103,171,189.65

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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.