Home / 287,604,583.80-431,406,875.70-178,552,890.60

Finding the Fourth Proportional to 287,604,583.80, 431,406,875.70 and 178,552,890.60

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Solution

The fourth proportional to 287,604,583.80, 431,406,875.70 and 178,552,890.60 is: 267,829,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,604,583.80 : 431,406,875.70 = 178,552,890.60 : x
  2. Step 2: Convert to fraction form
    287,604,583.80/431,406,875.70 = 178,552,890.60/x
  3. Step 3: Cross multiply
    287,604,583.80x = 431,406,875.70 × 178,552,890.60
  4. Step 4: Simplify right side
    287,604,583.80x = 77,028,944,680,949,888
  5. Step 5: Solve for x
    x = 77,028,944,680,949,888/287,604,583.80
  6. Step 6: Final answer
    x = 267,829,335.90

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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.