Home / 20,776,705.86-31,163,580.70-6,398,274.36

Finding the Fourth Proportional to 20,776,705.86, 31,163,580.70 and 6,398,274.36

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Solution

The fourth proportional to 20,776,705.86, 31,163,580.70 and 6,398,274.36 is: 9,596,956.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,705.86 : 31,163,580.70 = 6,398,274.36 : x
  2. Step 2: Convert to fraction form
    20,776,705.86/31,163,580.70 = 6,398,274.36/x
  3. Step 3: Cross multiply
    20,776,705.86x = 31,163,580.70 × 6,398,274.36
  4. Step 4: Simplify right side
    20,776,705.86x = 199,393,139,202,782.97
  5. Step 5: Solve for x
    x = 199,393,139,202,782.97/20,776,705.86
  6. Step 6: Final answer
    x = 9,596,956.35

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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.