Home / 139,610,965.37-209,144,011.11-108,761,095.55

Finding the Fourth Proportional to 139,610,965.37, 209,144,011.11 and 108,761,095.55

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Solution

The fourth proportional to 139,610,965.37, 209,144,011.11 and 108,761,095.55 is: 162,929,406.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,610,965.37 : 209,144,011.11 = 108,761,095.55 : x
  2. Step 2: Convert to fraction form
    139,610,965.37/209,144,011.11 = 108,761,095.55/x
  3. Step 3: Cross multiply
    139,610,965.37x = 209,144,011.11 × 108,761,095.55
  4. Step 4: Simplify right side
    139,610,965.37x = 22,746,731,774,999,252
  5. Step 5: Solve for x
    x = 22,746,731,774,999,252/139,610,965.37
  6. Step 6: Final answer
    x = 162,929,406.84

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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.