Home / 915,124,845.18-1,263,480,393.87-703,053,977.34

Finding the Fourth Proportional to 915,124,845.18, 1,263,480,393.87 and 703,053,977.34

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Solution

The fourth proportional to 915,124,845.18, 1,263,480,393.87 and 703,053,977.34 is: 970,681,673.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,124,845.18 : 1,263,480,393.87 = 703,053,977.34 : x
  2. Step 2: Convert to fraction form
    915,124,845.18/1,263,480,393.87 = 703,053,977.34/x
  3. Step 3: Cross multiply
    915,124,845.18x = 1,263,480,393.87 × 703,053,977.34
  4. Step 4: Simplify right side
    915,124,845.18x = 888,294,916,201,413,248
  5. Step 5: Solve for x
    x = 888,294,916,201,413,248/915,124,845.18
  6. Step 6: Final answer
    x = 970,681,673.52

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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.