Home / 12,788,901.60-19,183,352.40-11,743,807.20

Finding the Fourth Proportional to 12,788,901.60, 19,183,352.40 and 11,743,807.20

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Solution

The fourth proportional to 12,788,901.60, 19,183,352.40 and 11,743,807.20 is: 17,615,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,901.60 : 19,183,352.40 = 11,743,807.20 : x
  2. Step 2: Convert to fraction form
    12,788,901.60/19,183,352.40 = 11,743,807.20/x
  3. Step 3: Cross multiply
    12,788,901.60x = 19,183,352.40 × 11,743,807.20
  4. Step 4: Simplify right side
    12,788,901.60x = 225,285,592,035,257.25
  5. Step 5: Solve for x
    x = 225,285,592,035,257.25/12,788,901.60
  6. Step 6: Final answer
    x = 17,615,710.80

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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.