Home / 99,867,810,305.96-137,832,500,367.35-78,617,957,909.51

Finding the Fourth Proportional to 99,867,810,305.96, 137,832,500,367.35 and 78,617,957,909.51

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Solution

The fourth proportional to 99,867,810,305.96, 137,832,500,367.35 and 78,617,957,909.51 is: 108,504,528,929.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,867,810,305.96 : 137,832,500,367.35 = 78,617,957,909.51 : x
  2. Step 2: Convert to fraction form
    99,867,810,305.96/137,832,500,367.35 = 78,617,957,909.51/x
  3. Step 3: Cross multiply
    99,867,810,305.96x = 137,832,500,367.35 × 78,617,957,909.51
  4. Step 4: Simplify right side
    99,867,810,305.96x = 10,836,109,712,442,292,961,280
  5. Step 5: Solve for x
    x = 10,836,109,712,442,292,961,280/99,867,810,305.96
  6. Step 6: Final answer
    x = 108,504,528,929.24

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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.