Home / 12,456,957.60-18,681,937.20-3,939,904.80

Finding the Fourth Proportional to 12,456,957.60, 18,681,937.20 and 3,939,904.80

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Solution

The fourth proportional to 12,456,957.60, 18,681,937.20 and 3,939,904.80 is: 5,908,750.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,957.60 : 18,681,937.20 = 3,939,904.80 : x
  2. Step 2: Convert to fraction form
    12,456,957.60/18,681,937.20 = 3,939,904.80/x
  3. Step 3: Cross multiply
    12,456,957.60x = 18,681,937.20 × 3,939,904.80
  4. Step 4: Simplify right side
    12,456,957.60x = 73,605,054,047,578.55
  5. Step 5: Solve for x
    x = 73,605,054,047,578.55/12,456,957.60
  6. Step 6: Final answer
    x = 5,908,750.47

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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.