Home / 766,619,274.52-1,057,932,507.79-427,528,118.28

Finding the Fourth Proportional to 766,619,274.52, 1,057,932,507.79 and 427,528,118.28

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Solution

The fourth proportional to 766,619,274.52, 1,057,932,507.79 and 427,528,118.28 is: 589,987,637.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,619,274.52 : 1,057,932,507.79 = 427,528,118.28 : x
  2. Step 2: Convert to fraction form
    766,619,274.52/1,057,932,507.79 = 427,528,118.28/x
  3. Step 3: Cross multiply
    766,619,274.52x = 1,057,932,507.79 × 427,528,118.28
  4. Step 4: Simplify right side
    766,619,274.52x = 452,295,894,322,700,096
  5. Step 5: Solve for x
    x = 452,295,894,322,700,096/766,619,274.52
  6. Step 6: Final answer
    x = 589,987,637.09

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Double scale
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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.