Home / 19,037,405.20-28,572,437.40-7,686,000.40

Finding the Fourth Proportional to 19,037,405.20, 28,572,437.40 and 7,686,000.40

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Solution

The fourth proportional to 19,037,405.20, 28,572,437.40 and 7,686,000.40 is: 11,535,593.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,037,405.20 : 28,572,437.40 = 7,686,000.40 : x
  2. Step 2: Convert to fraction form
    19,037,405.20/28,572,437.40 = 7,686,000.40/x
  3. Step 3: Cross multiply
    19,037,405.20x = 28,572,437.40 × 7,686,000.40
  4. Step 4: Simplify right side
    19,037,405.20x = 219,607,765,285,374.97
  5. Step 5: Solve for x
    x = 219,607,765,285,374.97/19,037,405.20
  6. Step 6: Final answer
    x = 11,535,593.37

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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.