Home / 20,653,651.40-28,501,159.60-11,360,631.80

Finding the Fourth Proportional to 20,653,651.40, 28,501,159.60 and 11,360,631.80

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Solution

The fourth proportional to 20,653,651.40, 28,501,159.60 and 11,360,631.80 is: 15,677,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653,651.40 : 28,501,159.60 = 11,360,631.80 : x
  2. Step 2: Convert to fraction form
    20,653,651.40/28,501,159.60 = 11,360,631.80/x
  3. Step 3: Cross multiply
    20,653,651.40x = 28,501,159.60 × 11,360,631.80
  4. Step 4: Simplify right side
    20,653,651.40x = 323,791,180,088,635.31
  5. Step 5: Solve for x
    x = 323,791,180,088,635.31/20,653,651.40
  6. Step 6: Final answer
    x = 15,677,188.20

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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.