Home / 28,161,778.96-38,856,594-15,938,635.96

Finding the Fourth Proportional to 28,161,778.96, 38,856,594 and 15,938,635.96

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Solution

The fourth proportional to 28,161,778.96, 38,856,594 and 15,938,635.96 is: 21,991,547.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161,778.96 : 38,856,594 = 15,938,635.96 : x
  2. Step 2: Convert to fraction form
    28,161,778.96/38,856,594 = 15,938,635.96/x
  3. Step 3: Cross multiply
    28,161,778.96x = 38,856,594 × 15,938,635.96
  4. Step 4: Simplify right side
    28,161,778.96x = 619,321,106,411,520.25
  5. Step 5: Solve for x
    x = 619,321,106,411,520.25/28,161,778.96
  6. Step 6: Final answer
    x = 21,991,547.74

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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.