Home / 126,609,829.70-190,132,082.04-77,712,811.34

Finding the Fourth Proportional to 126,609,829.70, 190,132,082.04 and 77,712,811.34

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Solution

The fourth proportional to 126,609,829.70, 190,132,082.04 and 77,712,811.34 is: 116,702,618.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,609,829.70 : 190,132,082.04 = 77,712,811.34 : x
  2. Step 2: Convert to fraction form
    126,609,829.70/190,132,082.04 = 77,712,811.34/x
  3. Step 3: Cross multiply
    126,609,829.70x = 190,132,082.04 × 77,712,811.34
  4. Step 4: Simplify right side
    126,609,829.70x = 14,775,698,621,255,922
  5. Step 5: Solve for x
    x = 14,775,698,621,255,922/126,609,829.70
  6. Step 6: Final answer
    x = 116,702,618.24

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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.