Home / 31,136,965.71-42,969,011.04-16,815,387.67

Finding the Fourth Proportional to 31,136,965.71, 42,969,011.04 and 16,815,387.67

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Solution

The fourth proportional to 31,136,965.71, 42,969,011.04 and 16,815,387.67 is: 23,205,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,136,965.71 : 42,969,011.04 = 16,815,387.67 : x
  2. Step 2: Convert to fraction form
    31,136,965.71/42,969,011.04 = 16,815,387.67/x
  3. Step 3: Cross multiply
    31,136,965.71x = 42,969,011.04 × 16,815,387.67
  4. Step 4: Simplify right side
    31,136,965.71x = 722,540,578,392,071.50
  5. Step 5: Solve for x
    x = 722,540,578,392,071.50/31,136,965.71
  6. Step 6: Final answer
    x = 23,205,234.10

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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.