Home / 20,783,953.70-31,176,643.35-6,406,907.30

Finding the Fourth Proportional to 20,783,953.70, 31,176,643.35 and 6,406,907.30

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Solution

The fourth proportional to 20,783,953.70, 31,176,643.35 and 6,406,907.30 is: 9,610,580.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,783,953.70 : 31,176,643.35 = 6,406,907.30 : x
  2. Step 2: Convert to fraction form
    20,783,953.70/31,176,643.35 = 6,406,907.30/x
  3. Step 3: Cross multiply
    20,783,953.70x = 31,176,643.35 × 6,406,907.30
  4. Step 4: Simplify right side
    20,783,953.70x = 199,745,863,868,611.47
  5. Step 5: Solve for x
    x = 199,745,863,868,611.47/20,783,953.70
  6. Step 6: Final answer
    x = 9,610,580.68

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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.