Home / 20,656,904.40-30,985,356.60-9,319,496.40

Finding the Fourth Proportional to 20,656,904.40, 30,985,356.60 and 9,319,496.40

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Solution

The fourth proportional to 20,656,904.40, 30,985,356.60 and 9,319,496.40 is: 13,979,244.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656,904.40 : 30,985,356.60 = 9,319,496.40 : x
  2. Step 2: Convert to fraction form
    20,656,904.40/30,985,356.60 = 9,319,496.40/x
  3. Step 3: Cross multiply
    20,656,904.40x = 30,985,356.60 × 9,319,496.40
  4. Step 4: Simplify right side
    20,656,904.40x = 288,767,919,286,416.25
  5. Step 5: Solve for x
    x = 288,767,919,286,416.25/20,656,904.40
  6. Step 6: Final answer
    x = 13,979,244.60

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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.