Home / 287,388,618.10-431,082,927.15-166,456,266.10

Finding the Fourth Proportional to 287,388,618.10, 431,082,927.15 and 166,456,266.10

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Solution

The fourth proportional to 287,388,618.10, 431,082,927.15 and 166,456,266.10 is: 249,684,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,388,618.10 : 431,082,927.15 = 166,456,266.10 : x
  2. Step 2: Convert to fraction form
    287,388,618.10/431,082,927.15 = 166,456,266.10/x
  3. Step 3: Cross multiply
    287,388,618.10x = 431,082,927.15 × 166,456,266.10
  4. Step 4: Simplify right side
    287,388,618.10x = 71,756,454,432,847,312
  5. Step 5: Solve for x
    x = 71,756,454,432,847,312/287,388,618.10
  6. Step 6: Final answer
    x = 249,684,399.15

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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.