Home / 12,113,119.20-18,169,678.80-9,948,280.80

Finding the Fourth Proportional to 12,113,119.20, 18,169,678.80 and 9,948,280.80

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Solution

The fourth proportional to 12,113,119.20, 18,169,678.80 and 9,948,280.80 is: 14,922,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113,119.20 : 18,169,678.80 = 9,948,280.80 : x
  2. Step 2: Convert to fraction form
    12,113,119.20/18,169,678.80 = 9,948,280.80/x
  3. Step 3: Cross multiply
    12,113,119.20x = 18,169,678.80 × 9,948,280.80
  4. Step 4: Simplify right side
    12,113,119.20x = 180,757,066,748,207.06
  5. Step 5: Solve for x
    x = 180,757,066,748,207.06/12,113,119.20
  6. Step 6: Final answer
    x = 14,922,421.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.