Home / 28,426,815.81-39,229,005.85-15,374,074.66

Finding the Fourth Proportional to 28,426,815.81, 39,229,005.85 and 15,374,074.66

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Solution

The fourth proportional to 28,426,815.81, 39,229,005.85 and 15,374,074.66 is: 21,216,223.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,426,815.81 : 39,229,005.85 = 15,374,074.66 : x
  2. Step 2: Convert to fraction form
    28,426,815.81/39,229,005.85 = 15,374,074.66/x
  3. Step 3: Cross multiply
    28,426,815.81x = 39,229,005.85 × 15,374,074.66
  4. Step 4: Simplify right side
    28,426,815.81x = 603,109,664,638,969
  5. Step 5: Solve for x
    x = 603,109,664,638,969/28,426,815.81
  6. Step 6: Final answer
    x = 21,216,223.04

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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.