Home / 72,918,014.90-109,363,025.55-21,801,701.30

Finding the Fourth Proportional to 72,918,014.90, 109,363,025.55 and 21,801,701.30

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Solution

The fourth proportional to 72,918,014.90, 109,363,025.55 and 21,801,701.30 is: 32,698,367.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,918,014.90 : 109,363,025.55 = 21,801,701.30 : x
  2. Step 2: Convert to fraction form
    72,918,014.90/109,363,025.55 = 21,801,701.30/x
  3. Step 3: Cross multiply
    72,918,014.90x = 109,363,025.55 × 21,801,701.30
  4. Step 4: Simplify right side
    72,918,014.90x = 2,384,300,016,305,368
  5. Step 5: Solve for x
    x = 2,384,300,016,305,368/72,918,014.90
  6. Step 6: Final answer
    x = 32,698,367.06

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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.