Home / 28,251,145.40-42,376,718.10-13,883,430.20

Finding the Fourth Proportional to 28,251,145.40, 42,376,718.10 and 13,883,430.20

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Solution

The fourth proportional to 28,251,145.40, 42,376,718.10 and 13,883,430.20 is: 20,825,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,251,145.40 : 42,376,718.10 = 13,883,430.20 : x
  2. Step 2: Convert to fraction form
    28,251,145.40/42,376,718.10 = 13,883,430.20/x
  3. Step 3: Cross multiply
    28,251,145.40x = 42,376,718.10 × 13,883,430.20
  4. Step 4: Simplify right side
    28,251,145.40x = 588,334,207,846,426.62
  5. Step 5: Solve for x
    x = 588,334,207,846,426.62/28,251,145.40
  6. Step 6: Final answer
    x = 20,825,145.30

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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.