Home / 20,358,084.80-30,537,127.20-18,126,032.60

Finding the Fourth Proportional to 20,358,084.80, 30,537,127.20 and 18,126,032.60

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Solution

The fourth proportional to 20,358,084.80, 30,537,127.20 and 18,126,032.60 is: 27,189,048.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358,084.80 : 30,537,127.20 = 18,126,032.60 : x
  2. Step 2: Convert to fraction form
    20,358,084.80/30,537,127.20 = 18,126,032.60/x
  3. Step 3: Cross multiply
    20,358,084.80x = 30,537,127.20 × 18,126,032.60
  4. Step 4: Simplify right side
    20,358,084.80x = 553,516,963,137,546.75
  5. Step 5: Solve for x
    x = 553,516,963,137,546.75/20,358,084.80
  6. Step 6: Final answer
    x = 27,189,048.90

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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.