Home / 398,865,962,186.45-598,335,723,398.20-130,256,350,120.35

Finding the Fourth Proportional to 398,865,962,186.45, 598,335,723,398.20 and 130,256,350,120.35

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Solution

The fourth proportional to 398,865,962,186.45, 598,335,723,398.20 and 130,256,350,120.35 is: 195,396,536,343.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,865,962,186.45 : 598,335,723,398.20 = 130,256,350,120.35 : x
  2. Step 2: Convert to fraction form
    398,865,962,186.45/598,335,723,398.20 = 130,256,350,120.35/x
  3. Step 3: Cross multiply
    398,865,962,186.45x = 598,335,723,398.20 × 130,256,350,120.35
  4. Step 4: Simplify right side
    398,865,962,186.45x = 77,937,027,476,468,822,704,128
  5. Step 5: Solve for x
    x = 77,937,027,476,468,822,704,128/398,865,962,186.45
  6. Step 6: Final answer
    x = 195,396,536,343.30

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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.