Home / 15,800,693.52-21,806,731.80-8,925,618.20

Finding the Fourth Proportional to 15,800,693.52, 21,806,731.80 and 8,925,618.20

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Solution

The fourth proportional to 15,800,693.52, 21,806,731.80 and 8,925,618.20 is: 12,318,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,800,693.52 : 21,806,731.80 = 8,925,618.20 : x
  2. Step 2: Convert to fraction form
    15,800,693.52/21,806,731.80 = 8,925,618.20/x
  3. Step 3: Cross multiply
    15,800,693.52x = 21,806,731.80 × 8,925,618.20
  4. Step 4: Simplify right side
    15,800,693.52x = 194,638,562,236,598.75
  5. Step 5: Solve for x
    x = 194,638,562,236,598.75/15,800,693.52
  6. Step 6: Final answer
    x = 12,318,355.65

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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.