Home / 21,261,319.76-31,896,630.66-6,885,840.72

Finding the Fourth Proportional to 21,261,319.76, 31,896,630.66 and 6,885,840.72

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Solution

The fourth proportional to 21,261,319.76, 31,896,630.66 and 6,885,840.72 is: 10,330,267.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261,319.76 : 31,896,630.66 = 6,885,840.72 : x
  2. Step 2: Convert to fraction form
    21,261,319.76/31,896,630.66 = 6,885,840.72/x
  3. Step 3: Cross multiply
    21,261,319.76x = 31,896,630.66 × 6,885,840.72
  4. Step 4: Simplify right side
    21,261,319.76x = 219,635,118,229,428.47
  5. Step 5: Solve for x
    x = 219,635,118,229,428.47/21,261,319.76
  6. Step 6: Final answer
    x = 10,330,267.39

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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.