Home / 19,128,205.60-28,692,308.40-18,384,188.20

Finding the Fourth Proportional to 19,128,205.60, 28,692,308.40 and 18,384,188.20

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Solution

The fourth proportional to 19,128,205.60, 28,692,308.40 and 18,384,188.20 is: 27,576,282.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128,205.60 : 28,692,308.40 = 18,384,188.20 : x
  2. Step 2: Convert to fraction form
    19,128,205.60/28,692,308.40 = 18,384,188.20/x
  3. Step 3: Cross multiply
    19,128,205.60x = 28,692,308.40 × 18,384,188.20
  4. Step 4: Simplify right side
    19,128,205.60x = 527,484,797,518,040.81
  5. Step 5: Solve for x
    x = 527,484,797,518,040.81/19,128,205.60
  6. Step 6: Final answer
    x = 27,576,282.30

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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.