Home / 287,746,305.90-431,619,458.85-201,582,005.10

Finding the Fourth Proportional to 287,746,305.90, 431,619,458.85 and 201,582,005.10

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Solution

The fourth proportional to 287,746,305.90, 431,619,458.85 and 201,582,005.10 is: 302,373,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,746,305.90 : 431,619,458.85 = 201,582,005.10 : x
  2. Step 2: Convert to fraction form
    287,746,305.90/431,619,458.85 = 201,582,005.10/x
  3. Step 3: Cross multiply
    287,746,305.90x = 431,619,458.85 × 201,582,005.10
  4. Step 4: Simplify right side
    287,746,305.90x = 87,006,715,955,159,936
  5. Step 5: Solve for x
    x = 87,006,715,955,159,936/287,746,305.90
  6. Step 6: Final answer
    x = 302,373,007.65

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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.