Home / 90,383,031.12-124,728,663.30-49,129,923.48

Finding the Fourth Proportional to 90,383,031.12, 124,728,663.30 and 49,129,923.48

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Solution

The fourth proportional to 90,383,031.12, 124,728,663.30 and 49,129,923.48 is: 67,799,338.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,383,031.12 : 124,728,663.30 = 49,129,923.48 : x
  2. Step 2: Convert to fraction form
    90,383,031.12/124,728,663.30 = 49,129,923.48/x
  3. Step 3: Cross multiply
    90,383,031.12x = 124,728,663.30 × 49,129,923.48
  4. Step 4: Simplify right side
    90,383,031.12x = 6,127,909,683,691,684
  5. Step 5: Solve for x
    x = 6,127,909,683,691,684/90,383,031.12
  6. Step 6: Final answer
    x = 67,799,338.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.