Home / 89,845,857.76-134,783,679.48-31,538,411.78

Finding the Fourth Proportional to 89,845,857.76, 134,783,679.48 and 31,538,411.78

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Solution

The fourth proportional to 89,845,857.76, 134,783,679.48 and 31,538,411.78 is: 47,312,845.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,845,857.76 : 134,783,679.48 = 31,538,411.78 : x
  2. Step 2: Convert to fraction form
    89,845,857.76/134,783,679.48 = 31,538,411.78/x
  3. Step 3: Cross multiply
    89,845,857.76x = 134,783,679.48 × 31,538,411.78
  4. Step 4: Simplify right side
    89,845,857.76x = 4,250,863,184,663,776
  5. Step 5: Solve for x
    x = 4,250,863,184,663,776/89,845,857.76
  6. Step 6: Final answer
    x = 47,312,845.47

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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.