Home / 410,197,628.40-615,296,442.60-395,864,905.20

Finding the Fourth Proportional to 410,197,628.40, 615,296,442.60 and 395,864,905.20

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Solution

The fourth proportional to 410,197,628.40, 615,296,442.60 and 395,864,905.20 is: 593,797,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,197,628.40 : 615,296,442.60 = 395,864,905.20 : x
  2. Step 2: Convert to fraction form
    410,197,628.40/615,296,442.60 = 395,864,905.20/x
  3. Step 3: Cross multiply
    410,197,628.40x = 615,296,442.60 × 395,864,905.20
  4. Step 4: Simplify right side
    410,197,628.40x = 243,574,267,919,746,240
  5. Step 5: Solve for x
    x = 243,574,267,919,746,240/410,197,628.40
  6. Step 6: Final answer
    x = 593,797,357.80

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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.