Home / 65,250,072.39-90,023,063.75-36,989,415.54

Finding the Fourth Proportional to 65,250,072.39, 90,023,063.75 and 36,989,415.54

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Solution

The fourth proportional to 65,250,072.39, 90,023,063.75 and 36,989,415.54 is: 51,032,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,250,072.39 : 90,023,063.75 = 36,989,415.54 : x
  2. Step 2: Convert to fraction form
    65,250,072.39/90,023,063.75 = 36,989,415.54/x
  3. Step 3: Cross multiply
    65,250,072.39x = 90,023,063.75 × 36,989,415.54
  4. Step 4: Simplify right side
    65,250,072.39x = 3,329,900,513,698,362
  5. Step 5: Solve for x
    x = 3,329,900,513,698,362/65,250,072.39
  6. Step 6: Final answer
    x = 51,032,901.45

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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.