Home / 18,782,860.60-25,908,303.54-12,899,655.64

Finding the Fourth Proportional to 18,782,860.60, 25,908,303.54 and 12,899,655.64

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Solution

The fourth proportional to 18,782,860.60, 25,908,303.54 and 12,899,655.64 is: 17,793,253.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782,860.60 : 25,908,303.54 = 12,899,655.64 : x
  2. Step 2: Convert to fraction form
    18,782,860.60/25,908,303.54 = 12,899,655.64/x
  3. Step 3: Cross multiply
    18,782,860.60x = 25,908,303.54 × 12,899,655.64
  4. Step 4: Simplify right side
    18,782,860.60x = 334,208,193,882,593
  5. Step 5: Solve for x
    x = 334,208,193,882,593/18,782,860.60
  6. Step 6: Final answer
    x = 17,793,253.17

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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.