Home / 81,254,118-121,879,765.20-32,730,731.28

Finding the Fourth Proportional to 81,254,118, 121,879,765.20 and 32,730,731.28

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Solution

The fourth proportional to 81,254,118, 121,879,765.20 and 32,730,731.28 is: 49,095,528.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,254,118 : 121,879,765.20 = 32,730,731.28 : x
  2. Step 2: Convert to fraction form
    81,254,118/121,879,765.20 = 32,730,731.28/x
  3. Step 3: Cross multiply
    81,254,118x = 121,879,765.20 × 32,730,731.28
  4. Step 4: Simplify right side
    81,254,118x = 3,989,213,843,230,695.50
  5. Step 5: Solve for x
    x = 3,989,213,843,230,695.50/81,254,118
  6. Step 6: Final answer
    x = 49,095,528.22

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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.