Home / 472,771,568.78-708,593,152.51-220,039,638.29

Finding the Fourth Proportional to 472,771,568.78, 708,593,152.51 and 220,039,638.29

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Solution

The fourth proportional to 472,771,568.78, 708,593,152.51 and 220,039,638.29 is: 329,796,864.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,771,568.78 : 708,593,152.51 = 220,039,638.29 : x
  2. Step 2: Convert to fraction form
    472,771,568.78/708,593,152.51 = 220,039,638.29/x
  3. Step 3: Cross multiply
    472,771,568.78x = 708,593,152.51 × 220,039,638.29
  4. Step 4: Simplify right side
    472,771,568.78x = 155,918,580,973,071,200
  5. Step 5: Solve for x
    x = 155,918,580,973,071,200/472,771,568.78
  6. Step 6: Final answer
    x = 329,796,864.43

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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.