Home / 20,130,508.46-27,780,888.12-11,429,490.62

Finding the Fourth Proportional to 20,130,508.46, 27,780,888.12 and 11,429,490.62

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Solution

The fourth proportional to 20,130,508.46, 27,780,888.12 and 11,429,490.62 is: 15,773,143.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130,508.46 : 27,780,888.12 = 11,429,490.62 : x
  2. Step 2: Convert to fraction form
    20,130,508.46/27,780,888.12 = 11,429,490.62/x
  3. Step 3: Cross multiply
    20,130,508.46x = 27,780,888.12 × 11,429,490.62
  4. Step 4: Simplify right side
    20,130,508.46x = 317,521,400,182,809.44
  5. Step 5: Solve for x
    x = 317,521,400,182,809.44/20,130,508.46
  6. Step 6: Final answer
    x = 15,773,143.58

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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.