Home / 120,820,215.60-181,230,323.40-74,903,713.20

Finding the Fourth Proportional to 120,820,215.60, 181,230,323.40 and 74,903,713.20

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Solution

The fourth proportional to 120,820,215.60, 181,230,323.40 and 74,903,713.20 is: 112,355,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,820,215.60 : 181,230,323.40 = 74,903,713.20 : x
  2. Step 2: Convert to fraction form
    120,820,215.60/181,230,323.40 = 74,903,713.20/x
  3. Step 3: Cross multiply
    120,820,215.60x = 181,230,323.40 × 74,903,713.20
  4. Step 4: Simplify right side
    120,820,215.60x = 13,574,824,167,096,850
  5. Step 5: Solve for x
    x = 13,574,824,167,096,850/120,820,215.60
  6. Step 6: Final answer
    x = 112,355,569.80

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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.