Home / 21,294,211.40-31,931,985.90-8,510,467.40

Finding the Fourth Proportional to 21,294,211.40, 31,931,985.90 and 8,510,467.40

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Solution

The fourth proportional to 21,294,211.40, 31,931,985.90 and 8,510,467.40 is: 12,761,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,211.40 : 31,931,985.90 = 8,510,467.40 : x
  2. Step 2: Convert to fraction form
    21,294,211.40/31,931,985.90 = 8,510,467.40/x
  3. Step 3: Cross multiply
    21,294,211.40x = 31,931,985.90 × 8,510,467.40
  4. Step 4: Simplify right side
    21,294,211.40x = 271,756,125,019,209.66
  5. Step 5: Solve for x
    x = 271,756,125,019,209.66/21,294,211.40
  6. Step 6: Final answer
    x = 12,761,971.78

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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.