Home / 109,009,918.18-163,582,951.56-72,643,826.08

Finding the Fourth Proportional to 109,009,918.18, 163,582,951.56 and 72,643,826.08

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Solution

The fourth proportional to 109,009,918.18, 163,582,951.56 and 72,643,826.08 is: 109,011,103.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,009,918.18 : 163,582,951.56 = 72,643,826.08 : x
  2. Step 2: Convert to fraction form
    109,009,918.18/163,582,951.56 = 72,643,826.08/x
  3. Step 3: Cross multiply
    109,009,918.18x = 163,582,951.56 × 72,643,826.08
  4. Step 4: Simplify right side
    109,009,918.18x = 11,883,291,482,777,704
  5. Step 5: Solve for x
    x = 11,883,291,482,777,704/109,009,918.18
  6. Step 6: Final answer
    x = 109,011,103.59

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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.