Home / 252,631,690.80-378,947,536.20-155,271,699.60

Finding the Fourth Proportional to 252,631,690.80, 378,947,536.20 and 155,271,699.60

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Solution

The fourth proportional to 252,631,690.80, 378,947,536.20 and 155,271,699.60 is: 232,907,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,631,690.80 : 378,947,536.20 = 155,271,699.60 : x
  2. Step 2: Convert to fraction form
    252,631,690.80/378,947,536.20 = 155,271,699.60/x
  3. Step 3: Cross multiply
    252,631,690.80x = 378,947,536.20 × 155,271,699.60
  4. Step 4: Simplify right side
    252,631,690.80x = 58,839,828,005,006,520
  5. Step 5: Solve for x
    x = 58,839,828,005,006,520/252,631,690.80
  6. Step 6: Final answer
    x = 232,907,549.40

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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.