Home / 28,039,718.80-42,059,578.20-11,000,947.60

Finding the Fourth Proportional to 28,039,718.80, 42,059,578.20 and 11,000,947.60

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Solution

The fourth proportional to 28,039,718.80, 42,059,578.20 and 11,000,947.60 is: 16,501,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039,718.80 : 42,059,578.20 = 11,000,947.60 : x
  2. Step 2: Convert to fraction form
    28,039,718.80/42,059,578.20 = 11,000,947.60/x
  3. Step 3: Cross multiply
    28,039,718.80x = 42,059,578.20 × 11,000,947.60
  4. Step 4: Simplify right side
    28,039,718.80x = 462,695,215,856,302.31
  5. Step 5: Solve for x
    x = 462,695,215,856,302.31/28,039,718.80
  6. Step 6: Final answer
    x = 16,501,421.40

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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.