Home / 20,154,307.60-30,231,461.40-6,691,135.60

Finding the Fourth Proportional to 20,154,307.60, 30,231,461.40 and 6,691,135.60

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Solution

The fourth proportional to 20,154,307.60, 30,231,461.40 and 6,691,135.60 is: 10,036,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154,307.60 : 30,231,461.40 = 6,691,135.60 : x
  2. Step 2: Convert to fraction form
    20,154,307.60/30,231,461.40 = 6,691,135.60/x
  3. Step 3: Cross multiply
    20,154,307.60x = 30,231,461.40 × 6,691,135.60
  4. Step 4: Simplify right side
    20,154,307.60x = 202,282,807,613,565.81
  5. Step 5: Solve for x
    x = 202,282,807,613,565.81/20,154,307.60
  6. Step 6: Final answer
    x = 10,036,703.40

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Similar ratio
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1.5x scale

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.