Home / 12,570,486.28-18,868,923.20-11,140,319.50

Finding the Fourth Proportional to 12,570,486.28, 18,868,923.20 and 11,140,319.50

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Solution

The fourth proportional to 12,570,486.28, 18,868,923.20 and 11,140,319.50 is: 16,722,171.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570,486.28 : 18,868,923.20 = 11,140,319.50 : x
  2. Step 2: Convert to fraction form
    12,570,486.28/18,868,923.20 = 11,140,319.50/x
  3. Step 3: Cross multiply
    12,570,486.28x = 18,868,923.20 × 11,140,319.50
  4. Step 4: Simplify right side
    12,570,486.28x = 210,205,833,068,962.41
  5. Step 5: Solve for x
    x = 210,205,833,068,962.41/12,570,486.28
  6. Step 6: Final answer
    x = 16,722,171.95

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1.5x scale

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.