Home / 12,775,784.80-19,163,677.20-6,387,023.20

Finding the Fourth Proportional to 12,775,784.80, 19,163,677.20 and 6,387,023.20

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Solution

The fourth proportional to 12,775,784.80, 19,163,677.20 and 6,387,023.20 is: 9,580,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775,784.80 : 19,163,677.20 = 6,387,023.20 : x
  2. Step 2: Convert to fraction form
    12,775,784.80/19,163,677.20 = 6,387,023.20/x
  3. Step 3: Cross multiply
    12,775,784.80x = 19,163,677.20 × 6,387,023.20
  4. Step 4: Simplify right side
    12,775,784.80x = 122,398,850,873,711.03
  5. Step 5: Solve for x
    x = 122,398,850,873,711.03/12,775,784.80
  6. Step 6: Final answer
    x = 9,580,534.80

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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.