Home / 12,671,998.40-19,000,999.20-4,147,947.20

Finding the Fourth Proportional to 12,671,998.40, 19,000,999.20 and 4,147,947.20

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Solution

The fourth proportional to 12,671,998.40, 19,000,999.20 and 4,147,947.20 is: 6,219,630.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671,998.40 : 19,000,999.20 = 4,147,947.20 : x
  2. Step 2: Convert to fraction form
    12,671,998.40/19,000,999.20 = 4,147,947.20/x
  3. Step 3: Cross multiply
    12,671,998.40x = 19,000,999.20 × 4,147,947.20
  4. Step 4: Simplify right side
    12,671,998.40x = 78,815,141,428,842.23
  5. Step 5: Solve for x
    x = 78,815,141,428,842.23/12,671,998.40
  6. Step 6: Final answer
    x = 6,219,630.00

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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.