Home / 28,025,875.96-38,675,715.42-15,802,735.48

Finding the Fourth Proportional to 28,025,875.96, 38,675,715.42 and 15,802,735.48

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Solution

The fourth proportional to 28,025,875.96, 38,675,715.42 and 15,802,735.48 is: 21,807,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025,875.96 : 38,675,715.42 = 15,802,735.48 : x
  2. Step 2: Convert to fraction form
    28,025,875.96/38,675,715.42 = 15,802,735.48/x
  3. Step 3: Cross multiply
    28,025,875.96x = 38,675,715.42 × 15,802,735.48
  4. Step 4: Simplify right side
    28,025,875.96x = 611,182,100,282,017.12
  5. Step 5: Solve for x
    x = 611,182,100,282,017.12/28,025,875.96
  6. Step 6: Final answer
    x = 21,807,778.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.