Home / 1,087,269,833.75-1,500,390,133.56-664,591,203.05

Finding the Fourth Proportional to 1,087,269,833.75, 1,500,390,133.56 and 664,591,203.05

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Solution

The fourth proportional to 1,087,269,833.75, 1,500,390,133.56 and 664,591,203.05 is: 917,110,042.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,269,833.75 : 1,500,390,133.56 = 664,591,203.05 : x
  2. Step 2: Convert to fraction form
    1,087,269,833.75/1,500,390,133.56 = 664,591,203.05/x
  3. Step 3: Cross multiply
    1,087,269,833.75x = 1,500,390,133.56 × 664,591,203.05
  4. Step 4: Simplify right side
    1,087,269,833.75x = 997,146,083,899,488,512
  5. Step 5: Solve for x
    x = 997,146,083,899,488,512/1,087,269,833.75
  6. Step 6: Final answer
    x = 917,110,042.93

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1.5x scale

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.