Home / 90,804,550.40-136,206,825.60-60,413,868.80

Finding the Fourth Proportional to 90,804,550.40, 136,206,825.60 and 60,413,868.80

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Solution

The fourth proportional to 90,804,550.40, 136,206,825.60 and 60,413,868.80 is: 90,620,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,804,550.40 : 136,206,825.60 = 60,413,868.80 : x
  2. Step 2: Convert to fraction form
    90,804,550.40/136,206,825.60 = 60,413,868.80/x
  3. Step 3: Cross multiply
    90,804,550.40x = 136,206,825.60 × 60,413,868.80
  4. Step 4: Simplify right side
    90,804,550.40x = 8,228,781,291,462,881
  5. Step 5: Solve for x
    x = 8,228,781,291,462,881/90,804,550.40
  6. Step 6: Final answer
    x = 90,620,803.20

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1.5x scale

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.