Home / 399,113,313.60-598,669,970.40-217,714,785.60

Finding the Fourth Proportional to 399,113,313.60, 598,669,970.40 and 217,714,785.60

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Solution

The fourth proportional to 399,113,313.60, 598,669,970.40 and 217,714,785.60 is: 326,572,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,113,313.60 : 598,669,970.40 = 217,714,785.60 : x
  2. Step 2: Convert to fraction form
    399,113,313.60/598,669,970.40 = 217,714,785.60/x
  3. Step 3: Cross multiply
    399,113,313.60x = 598,669,970.40 × 217,714,785.60
  4. Step 4: Simplify right side
    399,113,313.60x = 130,339,304,250,794,336
  5. Step 5: Solve for x
    x = 130,339,304,250,794,336/399,113,313.60
  6. Step 6: Final answer
    x = 326,572,178.40

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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.