Home / 126,330,343.10-189,495,514.65-77,225,194.70

Finding the Fourth Proportional to 126,330,343.10, 189,495,514.65 and 77,225,194.70

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Solution

The fourth proportional to 126,330,343.10, 189,495,514.65 and 77,225,194.70 is: 115,837,792.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,330,343.10 : 189,495,514.65 = 77,225,194.70 : x
  2. Step 2: Convert to fraction form
    126,330,343.10/189,495,514.65 = 77,225,194.70/x
  3. Step 3: Cross multiply
    126,330,343.10x = 189,495,514.65 × 77,225,194.70
  4. Step 4: Simplify right side
    126,330,343.10x = 14,633,828,013,622,954
  5. Step 5: Solve for x
    x = 14,633,828,013,622,954/126,330,343.10
  6. Step 6: Final answer
    x = 115,837,792.05

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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.