Home / 12,882,547.20-17,777,715.84-7,081,204.80

Finding the Fourth Proportional to 12,882,547.20, 17,777,715.84 and 7,081,204.80

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Solution

The fourth proportional to 12,882,547.20, 17,777,715.84 and 7,081,204.80 is: 9,771,953.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882,547.20 : 17,777,715.84 = 7,081,204.80 : x
  2. Step 2: Convert to fraction form
    12,882,547.20/17,777,715.84 = 7,081,204.80/x
  3. Step 3: Cross multiply
    12,882,547.20x = 17,777,715.84 × 7,081,204.80
  4. Step 4: Simplify right side
    12,882,547.20x = 125,887,646,739,244.03
  5. Step 5: Solve for x
    x = 125,887,646,739,244.03/12,882,547.20
  6. Step 6: Final answer
    x = 9,771,953.08

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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.