Home / 18,756,223.16-28,130,398.13-5,289,901.88

Finding the Fourth Proportional to 18,756,223.16, 28,130,398.13 and 5,289,901.88

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Solution

The fourth proportional to 18,756,223.16, 28,130,398.13 and 5,289,901.88 is: 7,933,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756,223.16 : 28,130,398.13 = 5,289,901.88 : x
  2. Step 2: Convert to fraction form
    18,756,223.16/28,130,398.13 = 5,289,901.88/x
  3. Step 3: Cross multiply
    18,756,223.16x = 28,130,398.13 × 5,289,901.88
  4. Step 4: Simplify right side
    18,756,223.16x = 148,807,045,785,934
  5. Step 5: Solve for x
    x = 148,807,045,785,934/18,756,223.16
  6. Step 6: Final answer
    x = 7,933,742.55

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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.