Home / 28,073,430.80-42,110,146.20-13,689,094.40

Finding the Fourth Proportional to 28,073,430.80, 42,110,146.20 and 13,689,094.40

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Solution

The fourth proportional to 28,073,430.80, 42,110,146.20 and 13,689,094.40 is: 20,533,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073,430.80 : 42,110,146.20 = 13,689,094.40 : x
  2. Step 2: Convert to fraction form
    28,073,430.80/42,110,146.20 = 13,689,094.40/x
  3. Step 3: Cross multiply
    28,073,430.80x = 42,110,146.20 × 13,689,094.40
  4. Step 4: Simplify right side
    28,073,430.80x = 576,449,766,529,601.38
  5. Step 5: Solve for x
    x = 576,449,766,529,601.38/28,073,430.80
  6. Step 6: Final answer
    x = 20,533,641.60

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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.