Home / 20,768,047.80-31,152,071.70-11,810,095.80

Finding the Fourth Proportional to 20,768,047.80, 31,152,071.70 and 11,810,095.80

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Solution

The fourth proportional to 20,768,047.80, 31,152,071.70 and 11,810,095.80 is: 17,715,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,768,047.80 : 31,152,071.70 = 11,810,095.80 : x
  2. Step 2: Convert to fraction form
    20,768,047.80/31,152,071.70 = 11,810,095.80/x
  3. Step 3: Cross multiply
    20,768,047.80x = 31,152,071.70 × 11,810,095.80
  4. Step 4: Simplify right side
    20,768,047.80x = 367,908,951,145,468.88
  5. Step 5: Solve for x
    x = 367,908,951,145,468.88/20,768,047.80
  6. Step 6: Final answer
    x = 17,715,143.70

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1.5x scale

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.