Home / 12,568,031.40-18,852,047.10-7,785,062.40

Finding the Fourth Proportional to 12,568,031.40, 18,852,047.10 and 7,785,062.40

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Solution

The fourth proportional to 12,568,031.40, 18,852,047.10 and 7,785,062.40 is: 11,677,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568,031.40 : 18,852,047.10 = 7,785,062.40 : x
  2. Step 2: Convert to fraction form
    12,568,031.40/18,852,047.10 = 7,785,062.40/x
  3. Step 3: Cross multiply
    12,568,031.40x = 18,852,047.10 × 7,785,062.40
  4. Step 4: Simplify right side
    12,568,031.40x = 146,764,363,041,239.06
  5. Step 5: Solve for x
    x = 146,764,363,041,239.06/12,568,031.40
  6. Step 6: Final answer
    x = 11,677,593.60

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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.