Home / 90,299,767-124,615,320.02-51,149,672.50

Finding the Fourth Proportional to 90,299,767, 124,615,320.02 and 51,149,672.50

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Solution

The fourth proportional to 90,299,767, 124,615,320.02 and 51,149,672.50 is: 70,587,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,299,767 : 124,615,320.02 = 51,149,672.50 : x
  2. Step 2: Convert to fraction form
    90,299,767/124,615,320.02 = 51,149,672.50/x
  3. Step 3: Cross multiply
    90,299,767x = 124,615,320.02 × 51,149,672.50
  4. Step 4: Simplify right side
    90,299,767x = 6,374,032,807,505,693
  5. Step 5: Solve for x
    x = 6,374,032,807,505,693/90,299,767
  6. Step 6: Final answer
    x = 70,587,477.90

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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.