Home / 20,776,705.61-31,163,580.33-6,398,274.11

Finding the Fourth Proportional to 20,776,705.61, 31,163,580.33 and 6,398,274.11

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Solution

The fourth proportional to 20,776,705.61, 31,163,580.33 and 6,398,274.11 is: 9,596,955.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,705.61 : 31,163,580.33 = 6,398,274.11 : x
  2. Step 2: Convert to fraction form
    20,776,705.61/31,163,580.33 = 6,398,274.11/x
  3. Step 3: Cross multiply
    20,776,705.61x = 31,163,580.33 × 6,398,274.11
  4. Step 4: Simplify right side
    20,776,705.61x = 199,393,129,020,532.84
  5. Step 5: Solve for x
    x = 199,393,129,020,532.84/20,776,705.61
  6. Step 6: Final answer
    x = 9,596,955.98

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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.