Home / 124,719,913.20-187,079,869.80-78,803,410.80

Finding the Fourth Proportional to 124,719,913.20, 187,079,869.80 and 78,803,410.80

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Solution

The fourth proportional to 124,719,913.20, 187,079,869.80 and 78,803,410.80 is: 118,205,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,719,913.20 : 187,079,869.80 = 78,803,410.80 : x
  2. Step 2: Convert to fraction form
    124,719,913.20/187,079,869.80 = 78,803,410.80/x
  3. Step 3: Cross multiply
    124,719,913.20x = 187,079,869.80 × 78,803,410.80
  4. Step 4: Simplify right side
    124,719,913.20x = 14,742,531,832,259,914
  5. Step 5: Solve for x
    x = 14,742,531,832,259,914/124,719,913.20
  6. Step 6: Final answer
    x = 118,205,116.20

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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.