Home / 126,013,429.60-188,642,230.80-74,869,122.40

Finding the Fourth Proportional to 126,013,429.60, 188,642,230.80 and 74,869,122.40

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Solution

The fourth proportional to 126,013,429.60, 188,642,230.80 and 74,869,122.40 is: 112,079,151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,013,429.60 : 188,642,230.80 = 74,869,122.40 : x
  2. Step 2: Convert to fraction form
    126,013,429.60/188,642,230.80 = 74,869,122.40/x
  3. Step 3: Cross multiply
    126,013,429.60x = 188,642,230.80 × 74,869,122.40
  4. Step 4: Simplify right side
    126,013,429.60x = 14,123,478,267,574,252
  5. Step 5: Solve for x
    x = 14,123,478,267,574,252/126,013,429.60
  6. Step 6: Final answer
    x = 112,079,151.50

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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.