Home / 21,285,008.10-31,931,659.35-8,503,337.70

Finding the Fourth Proportional to 21,285,008.10, 31,931,659.35 and 8,503,337.70

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Solution

The fourth proportional to 21,285,008.10, 31,931,659.35 and 8,503,337.70 is: 12,756,663.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285,008.10 : 31,931,659.35 = 8,503,337.70 : x
  2. Step 2: Convert to fraction form
    21,285,008.10/31,931,659.35 = 8,503,337.70/x
  3. Step 3: Cross multiply
    21,285,008.10x = 31,931,659.35 × 8,503,337.70
  4. Step 4: Simplify right side
    21,285,008.10x = 271,525,682,774,412.47
  5. Step 5: Solve for x
    x = 271,525,682,774,412.47/21,285,008.10
  6. Step 6: Final answer
    x = 12,756,663.35

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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.