Home / 430,158,344.20-645,237,516.30-142,944,008.20

Finding the Fourth Proportional to 430,158,344.20, 645,237,516.30 and 142,944,008.20

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Solution

The fourth proportional to 430,158,344.20, 645,237,516.30 and 142,944,008.20 is: 214,416,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,158,344.20 : 645,237,516.30 = 142,944,008.20 : x
  2. Step 2: Convert to fraction form
    430,158,344.20/645,237,516.30 = 142,944,008.20/x
  3. Step 3: Cross multiply
    430,158,344.20x = 645,237,516.30 × 142,944,008.20
  4. Step 4: Simplify right side
    430,158,344.20x = 92,232,836,820,934,816
  5. Step 5: Solve for x
    x = 92,232,836,820,934,816/430,158,344.20
  6. Step 6: Final answer
    x = 214,416,012.30

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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.