Home / 21,358,882.08-29,470,150.08-12,655,550.88

Finding the Fourth Proportional to 21,358,882.08, 29,470,150.08 and 12,655,550.88

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Solution

The fourth proportional to 21,358,882.08, 29,470,150.08 and 12,655,550.88 is: 17,461,634.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,358,882.08 : 29,470,150.08 = 12,655,550.88 : x
  2. Step 2: Convert to fraction form
    21,358,882.08/29,470,150.08 = 12,655,550.88/x
  3. Step 3: Cross multiply
    21,358,882.08x = 29,470,150.08 × 12,655,550.88
  4. Step 4: Simplify right side
    21,358,882.08x = 372,960,983,778,676.06
  5. Step 5: Solve for x
    x = 372,960,983,778,676.06/21,358,882.08
  6. Step 6: Final answer
    x = 17,461,634.11

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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.