Home / 20,757,705.47-31,139,529.75-6,381,980.31

Finding the Fourth Proportional to 20,757,705.47, 31,139,529.75 and 6,381,980.31

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Solution

The fourth proportional to 20,757,705.47, 31,139,529.75 and 6,381,980.31 is: 9,573,884.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,705.47 : 31,139,529.75 = 6,381,980.31 : x
  2. Step 2: Convert to fraction form
    20,757,705.47/31,139,529.75 = 6,381,980.31/x
  3. Step 3: Cross multiply
    20,757,705.47x = 31,139,529.75 × 6,381,980.31
  4. Step 4: Simplify right side
    20,757,705.47x = 198,731,865,727,159.22
  5. Step 5: Solve for x
    x = 198,731,865,727,159.22/20,757,705.47
  6. Step 6: Final answer
    x = 9,573,884.07

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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.