Home / 28,434,479,298.92-39,220,687,369.14-18,286,037,750.36

Finding the Fourth Proportional to 28,434,479,298.92, 39,220,687,369.14 and 18,286,037,750.36

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Solution

The fourth proportional to 28,434,479,298.92, 39,220,687,369.14 and 18,286,037,750.36 is: 25,222,581,440.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,434,479,298.92 : 39,220,687,369.14 = 18,286,037,750.36 : x
  2. Step 2: Convert to fraction form
    28,434,479,298.92/39,220,687,369.14 = 18,286,037,750.36/x
  3. Step 3: Cross multiply
    28,434,479,298.92x = 39,220,687,369.14 × 18,286,037,750.36
  4. Step 4: Simplify right side
    28,434,479,298.92x = 717,190,969,827,161,669,632
  5. Step 5: Solve for x
    x = 717,190,969,827,161,669,632/28,434,479,298.92
  6. Step 6: Final answer
    x = 25,222,581,440.22

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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.