Home / 66,278,176.40-99,432,325.56-20,224,165.16

Finding the Fourth Proportional to 66,278,176.40, 99,432,325.56 and 20,224,165.16

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Solution

The fourth proportional to 66,278,176.40, 99,432,325.56 and 20,224,165.16 is: 30,340,843.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,278,176.40 : 99,432,325.56 = 20,224,165.16 : x
  2. Step 2: Convert to fraction form
    66,278,176.40/99,432,325.56 = 20,224,165.16/x
  3. Step 3: Cross multiply
    66,278,176.40x = 99,432,325.56 × 20,224,165.16
  4. Step 4: Simplify right side
    66,278,176.40x = 2,010,935,774,368,329.50
  5. Step 5: Solve for x
    x = 2,010,935,774,368,329.50/66,278,176.40
  6. Step 6: Final answer
    x = 30,340,843.45

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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.