Home / 90,028,219.20-124,239,064.32-48,775,110.36

Finding the Fourth Proportional to 90,028,219.20, 124,239,064.32 and 48,775,110.36

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Solution

The fourth proportional to 90,028,219.20, 124,239,064.32 and 48,775,110.36 is: 67,309,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,028,219.20 : 124,239,064.32 = 48,775,110.36 : x
  2. Step 2: Convert to fraction form
    90,028,219.20/124,239,064.32 = 48,775,110.36/x
  3. Step 3: Cross multiply
    90,028,219.20x = 124,239,064.32 × 48,775,110.36
  4. Step 4: Simplify right side
    90,028,219.20x = 6,059,774,073,231,138
  5. Step 5: Solve for x
    x = 6,059,774,073,231,138/90,028,219.20
  6. Step 6: Final answer
    x = 67,309,718.30

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1.5x scale

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.