Home / 84,121,330.20-126,181,995.30-51,809,717.40

Finding the Fourth Proportional to 84,121,330.20, 126,181,995.30 and 51,809,717.40

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Solution

The fourth proportional to 84,121,330.20, 126,181,995.30 and 51,809,717.40 is: 77,714,576.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,121,330.20 : 126,181,995.30 = 51,809,717.40 : x
  2. Step 2: Convert to fraction form
    84,121,330.20/126,181,995.30 = 51,809,717.40/x
  3. Step 3: Cross multiply
    84,121,330.20x = 126,181,995.30 × 51,809,717.40
  4. Step 4: Simplify right side
    84,121,330.20x = 6,537,453,517,461,128
  5. Step 5: Solve for x
    x = 6,537,453,517,461,128/84,121,330.20
  6. Step 6: Final answer
    x = 77,714,576.10

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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.