Home / 28,342,898.72-39,113,104.32-15,952,985.12

Finding the Fourth Proportional to 28,342,898.72, 39,113,104.32 and 15,952,985.12

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Solution

The fourth proportional to 28,342,898.72, 39,113,104.32 and 15,952,985.12 is: 22,015,065.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342,898.72 : 39,113,104.32 = 15,952,985.12 : x
  2. Step 2: Convert to fraction form
    28,342,898.72/39,113,104.32 = 15,952,985.12/x
  3. Step 3: Cross multiply
    28,342,898.72x = 39,113,104.32 × 15,952,985.12
  4. Step 4: Simplify right side
    28,342,898.72x = 623,970,771,213,967.75
  5. Step 5: Solve for x
    x = 623,970,771,213,967.75/28,342,898.72
  6. Step 6: Final answer
    x = 22,015,065.48

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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.