Home / 120,666,496.20-180,999,744.30-43,992,025.80

Finding the Fourth Proportional to 120,666,496.20, 180,999,744.30 and 43,992,025.80

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Solution

The fourth proportional to 120,666,496.20, 180,999,744.30 and 43,992,025.80 is: 65,988,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,666,496.20 : 180,999,744.30 = 43,992,025.80 : x
  2. Step 2: Convert to fraction form
    120,666,496.20/180,999,744.30 = 43,992,025.80/x
  3. Step 3: Cross multiply
    120,666,496.20x = 180,999,744.30 × 43,992,025.80
  4. Step 4: Simplify right side
    120,666,496.20x = 7,962,545,421,039,003
  5. Step 5: Solve for x
    x = 7,962,545,421,039,003/120,666,496.20
  6. Step 6: Final answer
    x = 65,988,038.70

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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.