Home / 287,552,350.40-431,328,525.60-178,713,233.60

Finding the Fourth Proportional to 287,552,350.40, 431,328,525.60 and 178,713,233.60

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Solution

The fourth proportional to 287,552,350.40, 431,328,525.60 and 178,713,233.60 is: 268,069,850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,552,350.40 : 431,328,525.60 = 178,713,233.60 : x
  2. Step 2: Convert to fraction form
    287,552,350.40/431,328,525.60 = 178,713,233.60/x
  3. Step 3: Cross multiply
    287,552,350.40x = 431,328,525.60 × 178,713,233.60
  4. Step 4: Simplify right side
    287,552,350.40x = 77,084,115,553,896,384
  5. Step 5: Solve for x
    x = 77,084,115,553,896,384/287,552,350.40
  6. Step 6: Final answer
    x = 268,069,850.40

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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.