Home / 890,430,867.60-1,335,020,458.14-392,204,928.48

Finding the Fourth Proportional to 890,430,867.60, 1,335,020,458.14 and 392,204,928.48

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Solution

The fourth proportional to 890,430,867.60, 1,335,020,458.14 and 392,204,928.48 is: 588,031,729.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,430,867.60 : 1,335,020,458.14 = 392,204,928.48 : x
  2. Step 2: Convert to fraction form
    890,430,867.60/1,335,020,458.14 = 392,204,928.48/x
  3. Step 3: Cross multiply
    890,430,867.60x = 1,335,020,458.14 × 392,204,928.48
  4. Step 4: Simplify right side
    890,430,867.60x = 523,601,603,304,135,616
  5. Step 5: Solve for x
    x = 523,601,603,304,135,616/890,430,867.60
  6. Step 6: Final answer
    x = 588,031,729.76

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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.