Home / 40,972,722.80-61,459,084.20-20,565,388.40

Finding the Fourth Proportional to 40,972,722.80, 61,459,084.20 and 20,565,388.40

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Solution

The fourth proportional to 40,972,722.80, 61,459,084.20 and 20,565,388.40 is: 30,848,082.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,972,722.80 : 61,459,084.20 = 20,565,388.40 : x
  2. Step 2: Convert to fraction form
    40,972,722.80/61,459,084.20 = 20,565,388.40/x
  3. Step 3: Cross multiply
    40,972,722.80x = 61,459,084.20 × 20,565,388.40
  4. Step 4: Simplify right side
    40,972,722.80x = 1,263,929,937,281,303.25
  5. Step 5: Solve for x
    x = 1,263,929,937,281,303.25/40,972,722.80
  6. Step 6: Final answer
    x = 30,848,082.60

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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.