Home / 658,632,019.24-986,630,719.38-396,171,688.33

Finding the Fourth Proportional to 658,632,019.24, 986,630,719.38 and 396,171,688.33

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Solution

The fourth proportional to 658,632,019.24, 986,630,719.38 and 396,171,688.33 is: 593,465,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,632,019.24 : 986,630,719.38 = 396,171,688.33 : x
  2. Step 2: Convert to fraction form
    658,632,019.24/986,630,719.38 = 396,171,688.33/x
  3. Step 3: Cross multiply
    658,632,019.24x = 986,630,719.38 × 396,171,688.33
  4. Step 4: Simplify right side
    658,632,019.24x = 390,875,157,855,017,024
  5. Step 5: Solve for x
    x = 390,875,157,855,017,024/658,632,019.24
  6. Step 6: Final answer
    x = 593,465,161.78

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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.