Home / 9,408,435.12-12,990,953.88-7,229,543.76

Finding the Fourth Proportional to 9,408,435.12, 12,990,953.88 and 7,229,543.76

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Solution

The fourth proportional to 9,408,435.12, 12,990,953.88 and 7,229,543.76 is: 9,982,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,408,435.12 : 12,990,953.88 = 7,229,543.76 : x
  2. Step 2: Convert to fraction form
    9,408,435.12/12,990,953.88 = 7,229,543.76/x
  3. Step 3: Cross multiply
    9,408,435.12x = 12,990,953.88 × 7,229,543.76
  4. Step 4: Simplify right side
    9,408,435.12x = 93,918,669,559,601.80
  5. Step 5: Solve for x
    x = 93,918,669,559,601.80/9,408,435.12
  6. Step 6: Final answer
    x = 9,982,390.10

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Double scale
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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.