Home / 15,989,312.79-22,065,317.71-8,647,145.78

Finding the Fourth Proportional to 15,989,312.79, 22,065,317.71 and 8,647,145.78

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Solution

The fourth proportional to 15,989,312.79, 22,065,317.71 and 8,647,145.78 is: 11,933,096.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,989,312.79 : 22,065,317.71 = 8,647,145.78 : x
  2. Step 2: Convert to fraction form
    15,989,312.79/22,065,317.71 = 8,647,145.78/x
  3. Step 3: Cross multiply
    15,989,312.79x = 22,065,317.71 × 8,647,145.78
  4. Step 4: Simplify right side
    15,989,312.79x = 190,802,018,788,441.31
  5. Step 5: Solve for x
    x = 190,802,018,788,441.31/15,989,312.79
  6. Step 6: Final answer
    x = 11,933,096.89

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.