Home / 514,942,238.80-710,615,355.24-279,992,985.44

Finding the Fourth Proportional to 514,942,238.80, 710,615,355.24 and 279,992,985.44

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Solution

The fourth proportional to 514,942,238.80, 710,615,355.24 and 279,992,985.44 is: 386,387,636.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,942,238.80 : 710,615,355.24 = 279,992,985.44 : x
  2. Step 2: Convert to fraction form
    514,942,238.80/710,615,355.24 = 279,992,985.44/x
  3. Step 3: Cross multiply
    514,942,238.80x = 710,615,355.24 × 279,992,985.44
  4. Step 4: Simplify right side
    514,942,238.80x = 198,967,314,813,153,760
  5. Step 5: Solve for x
    x = 198,967,314,813,153,760/514,942,238.80
  6. Step 6: Final answer
    x = 386,387,636.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.