Home / 287,388,001.30-431,082,001.95-82,922,746.90

Finding the Fourth Proportional to 287,388,001.30, 431,082,001.95 and 82,922,746.90

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Solution

The fourth proportional to 287,388,001.30, 431,082,001.95 and 82,922,746.90 is: 124,384,120.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,388,001.30 : 431,082,001.95 = 82,922,746.90 : x
  2. Step 2: Convert to fraction form
    287,388,001.30/431,082,001.95 = 82,922,746.90/x
  3. Step 3: Cross multiply
    287,388,001.30x = 431,082,001.95 × 82,922,746.90
  4. Step 4: Simplify right side
    287,388,001.30x = 35,746,503,740,845,160
  5. Step 5: Solve for x
    x = 35,746,503,740,845,160/287,388,001.30
  6. Step 6: Final answer
    x = 124,384,120.35

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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.