Home / 21,860,697.33-30,170,422.13-12,693,339.81

Finding the Fourth Proportional to 21,860,697.33, 30,170,422.13 and 12,693,339.81

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Solution

The fourth proportional to 21,860,697.33, 30,170,422.13 and 12,693,339.81 is: 17,518,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,697.33 : 30,170,422.13 = 12,693,339.81 : x
  2. Step 2: Convert to fraction form
    21,860,697.33/30,170,422.13 = 12,693,339.81/x
  3. Step 3: Cross multiply
    21,860,697.33x = 30,170,422.13 × 12,693,339.81
  4. Step 4: Simplify right side
    21,860,697.33x = 382,963,420,243,767.31
  5. Step 5: Solve for x
    x = 382,963,420,243,767.31/21,860,697.33
  6. Step 6: Final answer
    x = 17,518,353.35

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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.