Home / 120,820,220.60-181,230,330.90-74,903,718.20

Finding the Fourth Proportional to 120,820,220.60, 181,230,330.90 and 74,903,718.20

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Solution

The fourth proportional to 120,820,220.60, 181,230,330.90 and 74,903,718.20 is: 112,355,577.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,820,220.60 : 181,230,330.90 = 74,903,718.20 : x
  2. Step 2: Convert to fraction form
    120,820,220.60/181,230,330.90 = 74,903,718.20/x
  3. Step 3: Cross multiply
    120,820,220.60x = 181,230,330.90 × 74,903,718.20
  4. Step 4: Simplify right side
    120,820,220.60x = 13,574,825,635,026,354
  5. Step 5: Solve for x
    x = 13,574,825,635,026,354/120,820,220.60
  6. Step 6: Final answer
    x = 112,355,577.30

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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.