Home / 21,000,479.15-31,500,718.73-15,260,916.35

Finding the Fourth Proportional to 21,000,479.15, 31,500,718.73 and 15,260,916.35

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Solution

The fourth proportional to 21,000,479.15, 31,500,718.73 and 15,260,916.35 is: 22,891,374.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000,479.15 : 31,500,718.73 = 15,260,916.35 : x
  2. Step 2: Convert to fraction form
    21,000,479.15/31,500,718.73 = 15,260,916.35/x
  3. Step 3: Cross multiply
    21,000,479.15x = 31,500,718.73 × 15,260,916.35
  4. Step 4: Simplify right side
    21,000,479.15x = 480,729,833,503,408.25
  5. Step 5: Solve for x
    x = 480,729,833,503,408.25/21,000,479.15
  6. Step 6: Final answer
    x = 22,891,374.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.