Home / 8,391,091.80-12,586,637.70-7,445,530.20

Finding the Fourth Proportional to 8,391,091.80, 12,586,637.70 and 7,445,530.20

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Solution

The fourth proportional to 8,391,091.80, 12,586,637.70 and 7,445,530.20 is: 11,168,295.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391,091.80 : 12,586,637.70 = 7,445,530.20 : x
  2. Step 2: Convert to fraction form
    8,391,091.80/12,586,637.70 = 7,445,530.20/x
  3. Step 3: Cross multiply
    8,391,091.80x = 12,586,637.70 × 7,445,530.20
  4. Step 4: Simplify right side
    8,391,091.80x = 93,714,191,111,808.53
  5. Step 5: Solve for x
    x = 93,714,191,111,808.53/8,391,091.80
  6. Step 6: Final answer
    x = 11,168,295.30

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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.