Home / 500,280,447.68-690,387,083.22-277,276,526.80

Finding the Fourth Proportional to 500,280,447.68, 690,387,083.22 and 277,276,526.80

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Solution

The fourth proportional to 500,280,447.68, 690,387,083.22 and 277,276,526.80 is: 382,641,643.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,280,447.68 : 690,387,083.22 = 277,276,526.80 : x
  2. Step 2: Convert to fraction form
    500,280,447.68/690,387,083.22 = 277,276,526.80/x
  3. Step 3: Cross multiply
    500,280,447.68x = 690,387,083.22 × 277,276,526.80
  4. Step 4: Simplify right side
    500,280,447.68x = 191,428,132,582,824,192
  5. Step 5: Solve for x
    x = 191,428,132,582,824,192/500,280,447.68
  6. Step 6: Final answer
    x = 382,641,643.24

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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.