Home / 109,091,645.70-163,212,979.87-99,931,263.63

Finding the Fourth Proportional to 109,091,645.70, 163,212,979.87 and 99,931,263.63

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Solution

The fourth proportional to 109,091,645.70, 163,212,979.87 and 99,931,263.63 is: 149,508,050.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,091,645.70 : 163,212,979.87 = 99,931,263.63 : x
  2. Step 2: Convert to fraction form
    109,091,645.70/163,212,979.87 = 99,931,263.63/x
  3. Step 3: Cross multiply
    109,091,645.70x = 163,212,979.87 × 99,931,263.63
  4. Step 4: Simplify right side
    109,091,645.70x = 16,310,079,319,226,852
  5. Step 5: Solve for x
    x = 16,310,079,319,226,852/109,091,645.70
  6. Step 6: Final answer
    x = 149,508,050.91

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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.