Home / 126,109,254.24-189,169,518.96-38,664,479.52

Finding the Fourth Proportional to 126,109,254.24, 189,169,518.96 and 38,664,479.52

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Solution

The fourth proportional to 126,109,254.24, 189,169,518.96 and 38,664,479.52 is: 57,998,447.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,109,254.24 : 189,169,518.96 = 38,664,479.52 : x
  2. Step 2: Convert to fraction form
    126,109,254.24/189,169,518.96 = 38,664,479.52/x
  3. Step 3: Cross multiply
    126,109,254.24x = 189,169,518.96 × 38,664,479.52
  4. Step 4: Simplify right side
    126,109,254.24x = 7,314,140,991,637,173
  5. Step 5: Solve for x
    x = 7,314,140,991,637,173/126,109,254.24
  6. Step 6: Final answer
    x = 57,998,447.74

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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.