Home / 8,391,176,643.40-12,586,764,965.10-5,126,003,139.40

Finding the Fourth Proportional to 8,391,176,643.40, 12,586,764,965.10 and 5,126,003,139.40

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Solution

The fourth proportional to 8,391,176,643.40, 12,586,764,965.10 and 5,126,003,139.40 is: 7,689,004,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391,176,643.40 : 12,586,764,965.10 = 5,126,003,139.40 : x
  2. Step 2: Convert to fraction form
    8,391,176,643.40/12,586,764,965.10 = 5,126,003,139.40/x
  3. Step 3: Cross multiply
    8,391,176,643.40x = 12,586,764,965.10 × 5,126,003,139.40
  4. Step 4: Simplify right side
    8,391,176,643.40x = 64,519,796,725,992,529,920
  5. Step 5: Solve for x
    x = 64,519,796,725,992,529,920/8,391,176,643.40
  6. Step 6: Final answer
    x = 7,689,004,709.10

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.