Home / 100,025,111.40-149,754,231.90-89,821,444.20

Finding the Fourth Proportional to 100,025,111.40, 149,754,231.90 and 89,821,444.20

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Solution

The fourth proportional to 100,025,111.40, 149,754,231.90 and 89,821,444.20 is: 134,477,644.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,025,111.40 : 149,754,231.90 = 89,821,444.20 : x
  2. Step 2: Convert to fraction form
    100,025,111.40/149,754,231.90 = 89,821,444.20/x
  3. Step 3: Cross multiply
    100,025,111.40x = 149,754,231.90 × 89,821,444.20
  4. Step 4: Simplify right side
    100,025,111.40x = 13,451,141,384,319,710
  5. Step 5: Solve for x
    x = 13,451,141,384,319,710/100,025,111.40
  6. Step 6: Final answer
    x = 134,477,644.62

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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.