Home / 65,250,072.79-90,023,064.30-36,989,415.94

Finding the Fourth Proportional to 65,250,072.79, 90,023,064.30 and 36,989,415.94

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Solution

The fourth proportional to 65,250,072.79, 90,023,064.30 and 36,989,415.94 is: 51,032,901.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,250,072.79 : 90,023,064.30 = 36,989,415.94 : x
  2. Step 2: Convert to fraction form
    65,250,072.79/90,023,064.30 = 36,989,415.94/x
  3. Step 3: Cross multiply
    65,250,072.79x = 90,023,064.30 × 36,989,415.94
  4. Step 4: Simplify right side
    65,250,072.79x = 3,329,900,569,135,949.50
  5. Step 5: Solve for x
    x = 3,329,900,569,135,949.50/65,250,072.79
  6. Step 6: Final answer
    x = 51,032,901.99

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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.