Home / 268,273,820.20-402,410,730.30-145,829,813.80

Finding the Fourth Proportional to 268,273,820.20, 402,410,730.30 and 145,829,813.80

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Solution

The fourth proportional to 268,273,820.20, 402,410,730.30 and 145,829,813.80 is: 218,744,720.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,273,820.20 : 402,410,730.30 = 145,829,813.80 : x
  2. Step 2: Convert to fraction form
    268,273,820.20/402,410,730.30 = 145,829,813.80/x
  3. Step 3: Cross multiply
    268,273,820.20x = 402,410,730.30 × 145,829,813.80
  4. Step 4: Simplify right side
    268,273,820.20x = 58,683,481,870,771,024
  5. Step 5: Solve for x
    x = 58,683,481,870,771,024/268,273,820.20
  6. Step 6: Final answer
    x = 218,744,720.70

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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.