Home / 21,888,143.80-32,832,215.70-12,818,217.40

Finding the Fourth Proportional to 21,888,143.80, 32,832,215.70 and 12,818,217.40

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Solution

The fourth proportional to 21,888,143.80, 32,832,215.70 and 12,818,217.40 is: 19,227,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,888,143.80 : 32,832,215.70 = 12,818,217.40 : x
  2. Step 2: Convert to fraction form
    21,888,143.80/32,832,215.70 = 12,818,217.40/x
  3. Step 3: Cross multiply
    21,888,143.80x = 32,832,215.70 × 12,818,217.40
  4. Step 4: Simplify right side
    21,888,143.80x = 420,850,478,566,293.19
  5. Step 5: Solve for x
    x = 420,850,478,566,293.19/21,888,143.80
  6. Step 6: Final answer
    x = 19,227,326.10

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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.