Home / 257,792,002.80-386,688,004.20-143,130,217.20

Finding the Fourth Proportional to 257,792,002.80, 386,688,004.20 and 143,130,217.20

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Solution

The fourth proportional to 257,792,002.80, 386,688,004.20 and 143,130,217.20 is: 214,695,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,792,002.80 : 386,688,004.20 = 143,130,217.20 : x
  2. Step 2: Convert to fraction form
    257,792,002.80/386,688,004.20 = 143,130,217.20/x
  3. Step 3: Cross multiply
    257,792,002.80x = 386,688,004.20 × 143,130,217.20
  4. Step 4: Simplify right side
    257,792,002.80x = 55,346,738,029,780,504
  5. Step 5: Solve for x
    x = 55,346,738,029,780,504/257,792,002.80
  6. Step 6: Final answer
    x = 214,695,325.80

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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.