Home / 257,792,000.80-386,688,001.20-143,130,215.20

Finding the Fourth Proportional to 257,792,000.80, 386,688,001.20 and 143,130,215.20

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Solution

The fourth proportional to 257,792,000.80, 386,688,001.20 and 143,130,215.20 is: 214,695,322.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,792,000.80 : 386,688,001.20 = 143,130,215.20 : x
  2. Step 2: Convert to fraction form
    257,792,000.80/386,688,001.20 = 143,130,215.20/x
  3. Step 3: Cross multiply
    257,792,000.80x = 386,688,001.20 × 143,130,215.20
  4. Step 4: Simplify right side
    257,792,000.80x = 55,346,736,827,013,848
  5. Step 5: Solve for x
    x = 55,346,736,827,013,848/257,792,000.80
  6. Step 6: Final answer
    x = 214,695,322.80

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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.