Home / 12,458,529.60-18,687,794.40-9,435,220.80

Finding the Fourth Proportional to 12,458,529.60, 18,687,794.40 and 9,435,220.80

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Solution

The fourth proportional to 12,458,529.60, 18,687,794.40 and 9,435,220.80 is: 14,152,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,529.60 : 18,687,794.40 = 9,435,220.80 : x
  2. Step 2: Convert to fraction form
    12,458,529.60/18,687,794.40 = 9,435,220.80/x
  3. Step 3: Cross multiply
    12,458,529.60x = 18,687,794.40 × 9,435,220.80
  4. Step 4: Simplify right side
    12,458,529.60x = 176,323,466,429,003.53
  5. Step 5: Solve for x
    x = 176,323,466,429,003.53/12,458,529.60
  6. Step 6: Final answer
    x = 14,152,831.20

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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.