Home / 12,943,998.80-19,415,998.20-12,692,056.40

Finding the Fourth Proportional to 12,943,998.80, 19,415,998.20 and 12,692,056.40

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Solution

The fourth proportional to 12,943,998.80, 19,415,998.20 and 12,692,056.40 is: 19,038,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943,998.80 : 19,415,998.20 = 12,692,056.40 : x
  2. Step 2: Convert to fraction form
    12,943,998.80/19,415,998.20 = 12,692,056.40/x
  3. Step 3: Cross multiply
    12,943,998.80x = 19,415,998.20 × 12,692,056.40
  4. Step 4: Simplify right side
    12,943,998.80x = 246,428,944,216,698.47
  5. Step 5: Solve for x
    x = 246,428,944,216,698.47/12,943,998.80
  6. Step 6: Final answer
    x = 19,038,084.60

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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.