Home / 43,680,005.20-65,520,007.80-13,383,931.60

Finding the Fourth Proportional to 43,680,005.20, 65,520,007.80 and 13,383,931.60

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Solution

The fourth proportional to 43,680,005.20, 65,520,007.80 and 13,383,931.60 is: 20,075,897.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,680,005.20 : 65,520,007.80 = 13,383,931.60 : x
  2. Step 2: Convert to fraction form
    43,680,005.20/65,520,007.80 = 13,383,931.60/x
  3. Step 3: Cross multiply
    43,680,005.20x = 65,520,007.80 × 13,383,931.60
  4. Step 4: Simplify right side
    43,680,005.20x = 876,915,302,826,666.38
  5. Step 5: Solve for x
    x = 876,915,302,826,666.38/43,680,005.20
  6. Step 6: Final answer
    x = 20,075,897.40

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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.