Home / 826,749,125.60-1,240,123,688.40-281,490,659.60

Finding the Fourth Proportional to 826,749,125.60, 1,240,123,688.40 and 281,490,659.60

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Solution

The fourth proportional to 826,749,125.60, 1,240,123,688.40 and 281,490,659.60 is: 422,235,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,749,125.60 : 1,240,123,688.40 = 281,490,659.60 : x
  2. Step 2: Convert to fraction form
    826,749,125.60/1,240,123,688.40 = 281,490,659.60/x
  3. Step 3: Cross multiply
    826,749,125.60x = 1,240,123,688.40 × 281,490,659.60
  4. Step 4: Simplify right side
    826,749,125.60x = 349,083,235,033,300,928
  5. Step 5: Solve for x
    x = 349,083,235,033,300,928/826,749,125.60
  6. Step 6: Final answer
    x = 422,235,989.40

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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.