Home / 15,317,031.90-21,140,640.63-9,125,705.55

Finding the Fourth Proportional to 15,317,031.90, 21,140,640.63 and 9,125,705.55

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Solution

The fourth proportional to 15,317,031.90, 21,140,640.63 and 9,125,705.55 is: 12,595,342.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317,031.90 : 21,140,640.63 = 9,125,705.55 : x
  2. Step 2: Convert to fraction form
    15,317,031.90/21,140,640.63 = 9,125,705.55/x
  3. Step 3: Cross multiply
    15,317,031.90x = 21,140,640.63 × 9,125,705.55
  4. Step 4: Simplify right side
    15,317,031.90x = 192,923,261,527,746.50
  5. Step 5: Solve for x
    x = 192,923,261,527,746.50/15,317,031.90
  6. Step 6: Final answer
    x = 12,595,342.41

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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.