Home / 13,478,761,095.38-20,178,800,836.68-7,865,497,020.50

Finding the Fourth Proportional to 13,478,761,095.38, 20,178,800,836.68 and 7,865,497,020.50

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Solution

The fourth proportional to 13,478,761,095.38, 20,178,800,836.68 and 7,865,497,020.50 is: 11,775,288,302.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478,761,095.38 : 20,178,800,836.68 = 7,865,497,020.50 : x
  2. Step 2: Convert to fraction form
    13,478,761,095.38/20,178,800,836.68 = 7,865,497,020.50/x
  3. Step 3: Cross multiply
    13,478,761,095.38x = 20,178,800,836.68 × 7,865,497,020.50
  4. Step 4: Simplify right side
    13,478,761,095.38x = 158,716,297,858,169,438,208
  5. Step 5: Solve for x
    x = 158,716,297,858,169,438,208/13,478,761,095.38
  6. Step 6: Final answer
    x = 11,775,288,302.47

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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.