Home / 20,696,891.60-31,045,337.40-20,360,968.40

Finding the Fourth Proportional to 20,696,891.60, 31,045,337.40 and 20,360,968.40

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Solution

The fourth proportional to 20,696,891.60, 31,045,337.40 and 20,360,968.40 is: 30,541,452.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696,891.60 : 31,045,337.40 = 20,360,968.40 : x
  2. Step 2: Convert to fraction form
    20,696,891.60/31,045,337.40 = 20,360,968.40/x
  3. Step 3: Cross multiply
    20,696,891.60x = 31,045,337.40 × 20,360,968.40
  4. Step 4: Simplify right side
    20,696,891.60x = 632,113,133,768,738.12
  5. Step 5: Solve for x
    x = 632,113,133,768,738.12/20,696,891.60
  6. Step 6: Final answer
    x = 30,541,452.60

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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.