Home / 81,181,009.28-112,041,922.87-63,907,339.70

Finding the Fourth Proportional to 81,181,009.28, 112,041,922.87 and 63,907,339.70

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Solution

The fourth proportional to 81,181,009.28, 112,041,922.87 and 63,907,339.70 is: 88,201,677.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,181,009.28 : 112,041,922.87 = 63,907,339.70 : x
  2. Step 2: Convert to fraction form
    81,181,009.28/112,041,922.87 = 63,907,339.70/x
  3. Step 3: Cross multiply
    81,181,009.28x = 112,041,922.87 × 63,907,339.70
  4. Step 4: Simplify right side
    81,181,009.28x = 7,160,301,225,495,119
  5. Step 5: Solve for x
    x = 7,160,301,225,495,119/81,181,009.28
  6. Step 6: Final answer
    x = 88,201,677.82

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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.