Home / 287,864,216.10-431,796,324.15-282,124,653.30

Finding the Fourth Proportional to 287,864,216.10, 431,796,324.15 and 282,124,653.30

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Solution

The fourth proportional to 287,864,216.10, 431,796,324.15 and 282,124,653.30 is: 423,186,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,864,216.10 : 431,796,324.15 = 282,124,653.30 : x
  2. Step 2: Convert to fraction form
    287,864,216.10/431,796,324.15 = 282,124,653.30/x
  3. Step 3: Cross multiply
    287,864,216.10x = 431,796,324.15 × 282,124,653.30
  4. Step 4: Simplify right side
    287,864,216.10x = 121,820,388,247,033,168
  5. Step 5: Solve for x
    x = 121,820,388,247,033,168/287,864,216.10
  6. Step 6: Final answer
    x = 423,186,979.95

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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.