Home / 20,637,248.40-30,920,443.20-13,445,080.20

Finding the Fourth Proportional to 20,637,248.40, 30,920,443.20 and 13,445,080.20

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Solution

The fourth proportional to 20,637,248.40, 30,920,443.20 and 13,445,080.20 is: 20,144,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637,248.40 : 30,920,443.20 = 13,445,080.20 : x
  2. Step 2: Convert to fraction form
    20,637,248.40/30,920,443.20 = 13,445,080.20/x
  3. Step 3: Cross multiply
    20,637,248.40x = 30,920,443.20 × 13,445,080.20
  4. Step 4: Simplify right side
    20,637,248.40x = 415,727,838,643,544.62
  5. Step 5: Solve for x
    x = 415,727,838,643,544.62/20,637,248.40
  6. Step 6: Final answer
    x = 20,144,538.20

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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.