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Finding the Fourth Proportional to 68,783,478.80, 94,921,954.02 and 37,421,706.02

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Solution

The fourth proportional to 68,783,478.80, 94,921,954.02 and 37,421,706.02 is: 51,642,364.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,783,478.80 : 94,921,954.02 = 37,421,706.02 : x
  2. Step 2: Convert to fraction form
    68,783,478.80/94,921,954.02 = 37,421,706.02/x
  3. Step 3: Cross multiply
    68,783,478.80x = 94,921,954.02 × 37,421,706.02
  4. Step 4: Simplify right side
    68,783,478.80x = 3,552,141,457,705,787.50
  5. Step 5: Solve for x
    x = 3,552,141,457,705,787.50/68,783,478.80
  6. Step 6: Final answer
    x = 51,642,364.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.