Home / 500,309,182,134.90-690,378,427,578.50-280,586,794,358.60

Finding the Fourth Proportional to 500,309,182,134.90, 690,378,427,578.50 and 280,586,794,358.60

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Solution

The fourth proportional to 500,309,182,134.90, 690,378,427,578.50 and 280,586,794,358.60 is: 387,182,719,817.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,309,182,134.90 : 690,378,427,578.50 = 280,586,794,358.60 : x
  2. Step 2: Convert to fraction form
    500,309,182,134.90/690,378,427,578.50 = 280,586,794,358.60/x
  3. Step 3: Cross multiply
    500,309,182,134.90x = 690,378,427,578.50 × 280,586,794,358.60
  4. Step 4: Simplify right side
    500,309,182,134.90x = 193,711,069,888,582,179,094,528
  5. Step 5: Solve for x
    x = 193,711,069,888,582,179,094,528/500,309,182,134.90
  6. Step 6: Final answer
    x = 387,182,719,817.35

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1.5x scale

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.