Home / 601,577,697.28-830,449,240.32-378,886,665.60

Finding the Fourth Proportional to 601,577,697.28, 830,449,240.32 and 378,886,665.60

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Solution

The fourth proportional to 601,577,697.28, 830,449,240.32 and 378,886,665.60 is: 523,034,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,577,697.28 : 830,449,240.32 = 378,886,665.60 : x
  2. Step 2: Convert to fraction form
    601,577,697.28/830,449,240.32 = 378,886,665.60/x
  3. Step 3: Cross multiply
    601,577,697.28x = 830,449,240.32 × 378,886,665.60
  4. Step 4: Simplify right side
    601,577,697.28x = 314,646,143,614,897,920
  5. Step 5: Solve for x
    x = 314,646,143,614,897,920/601,577,697.28
  6. Step 6: Final answer
    x = 523,034,921.40

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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.