Home / 8,471,810.90-12,707,716.35-7,887,225.80

Finding the Fourth Proportional to 8,471,810.90, 12,707,716.35 and 7,887,225.80

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Solution

The fourth proportional to 8,471,810.90, 12,707,716.35 and 7,887,225.80 is: 11,830,838.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,471,810.90 : 12,707,716.35 = 7,887,225.80 : x
  2. Step 2: Convert to fraction form
    8,471,810.90/12,707,716.35 = 7,887,225.80/x
  3. Step 3: Cross multiply
    8,471,810.90x = 12,707,716.35 × 7,887,225.80
  4. Step 4: Simplify right side
    8,471,810.90x = 100,228,628,254,801.83
  5. Step 5: Solve for x
    x = 100,228,628,254,801.83/8,471,810.90
  6. Step 6: Final answer
    x = 11,830,838.70

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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.