Home / 121,400,543.20-182,289,771.60-70,382,207.20

Finding the Fourth Proportional to 121,400,543.20, 182,289,771.60 and 70,382,207.20

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Solution

The fourth proportional to 121,400,543.20, 182,289,771.60 and 70,382,207.20 is: 105,682,858.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,400,543.20 : 182,289,771.60 = 70,382,207.20 : x
  2. Step 2: Convert to fraction form
    121,400,543.20/182,289,771.60 = 70,382,207.20/x
  3. Step 3: Cross multiply
    121,400,543.20x = 182,289,771.60 × 70,382,207.20
  4. Step 4: Simplify right side
    121,400,543.20x = 12,829,956,475,191,876
  5. Step 5: Solve for x
    x = 12,829,956,475,191,876/121,400,543.20
  6. Step 6: Final answer
    x = 105,682,858.88

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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.