Home / 409,756,347.74-614,546,458.55-129,659,458.35

Finding the Fourth Proportional to 409,756,347.74, 614,546,458.55 and 129,659,458.35

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Solution

The fourth proportional to 409,756,347.74, 614,546,458.55 and 129,659,458.35 is: 194,461,321.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,756,347.74 : 614,546,458.55 = 129,659,458.35 : x
  2. Step 2: Convert to fraction form
    409,756,347.74/614,546,458.55 = 129,659,458.35/x
  3. Step 3: Cross multiply
    409,756,347.74x = 614,546,458.55 × 129,659,458.35
  4. Step 4: Simplify right side
    409,756,347.74x = 79,681,760,946,503,712
  5. Step 5: Solve for x
    x = 79,681,760,946,503,712/409,756,347.74
  6. Step 6: Final answer
    x = 194,461,321.68

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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.