Home / 21,855,718.74-30,132,853.41-17,920,978.26

Finding the Fourth Proportional to 21,855,718.74, 30,132,853.41 and 17,920,978.26

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Solution

The fourth proportional to 21,855,718.74, 30,132,853.41 and 17,920,978.26 is: 24,707,959.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,855,718.74 : 30,132,853.41 = 17,920,978.26 : x
  2. Step 2: Convert to fraction form
    21,855,718.74/30,132,853.41 = 17,920,978.26/x
  3. Step 3: Cross multiply
    21,855,718.74x = 30,132,853.41 × 17,920,978.26
  4. Step 4: Simplify right side
    21,855,718.74x = 540,010,210,872,376.94
  5. Step 5: Solve for x
    x = 540,010,210,872,376.94/21,855,718.74
  6. Step 6: Final answer
    x = 24,707,959.38

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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.