Home / 208,040,743.80-311,837,166.90-78,598,337.40

Finding the Fourth Proportional to 208,040,743.80, 311,837,166.90 and 78,598,337.40

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Solution

The fourth proportional to 208,040,743.80, 311,837,166.90 and 78,598,337.40 is: 117,812,897.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,040,743.80 : 311,837,166.90 = 78,598,337.40 : x
  2. Step 2: Convert to fraction form
    208,040,743.80/311,837,166.90 = 78,598,337.40/x
  3. Step 3: Cross multiply
    208,040,743.80x = 311,837,166.90 × 78,598,337.40
  4. Step 4: Simplify right side
    208,040,743.80x = 24,509,882,857,866,312
  5. Step 5: Solve for x
    x = 24,509,882,857,866,312/208,040,743.80
  6. Step 6: Final answer
    x = 117,812,897.66

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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.