Home / 21,038,044.68-29,030,289.95-12,215,771.43

Finding the Fourth Proportional to 21,038,044.68, 29,030,289.95 and 12,215,771.43

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Solution

The fourth proportional to 21,038,044.68, 29,030,289.95 and 12,215,771.43 is: 16,856,480.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038,044.68 : 29,030,289.95 = 12,215,771.43 : x
  2. Step 2: Convert to fraction form
    21,038,044.68/29,030,289.95 = 12,215,771.43/x
  3. Step 3: Cross multiply
    21,038,044.68x = 29,030,289.95 × 12,215,771.43
  4. Step 4: Simplify right side
    21,038,044.68x = 354,627,386,575,826.12
  5. Step 5: Solve for x
    x = 354,627,386,575,826.12/21,038,044.68
  6. Step 6: Final answer
    x = 16,856,480.34

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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.