Home / 12,721,404.11-17,555,524.38-6,920,172.01

Finding the Fourth Proportional to 12,721,404.11, 17,555,524.38 and 6,920,172.01

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Solution

The fourth proportional to 12,721,404.11, 17,555,524.38 and 6,920,172.01 is: 9,549,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721,404.11 : 17,555,524.38 = 6,920,172.01 : x
  2. Step 2: Convert to fraction form
    12,721,404.11/17,555,524.38 = 6,920,172.01/x
  3. Step 3: Cross multiply
    12,721,404.11x = 17,555,524.38 × 6,920,172.01
  4. Step 4: Simplify right side
    12,721,404.11x = 121,487,248,483,243.66
  5. Step 5: Solve for x
    x = 121,487,248,483,243.66/12,721,404.11
  6. Step 6: Final answer
    x = 9,549,830.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.