Home / 189,693,567.11-261,632,691.47-163,276,881.59

Finding the Fourth Proportional to 189,693,567.11, 261,632,691.47 and 163,276,881.59

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Solution

The fourth proportional to 189,693,567.11, 261,632,691.47 and 163,276,881.59 is: 225,197,778.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,693,567.11 : 261,632,691.47 = 163,276,881.59 : x
  2. Step 2: Convert to fraction form
    189,693,567.11/261,632,691.47 = 163,276,881.59/x
  3. Step 3: Cross multiply
    189,693,567.11x = 261,632,691.47 × 163,276,881.59
  4. Step 4: Simplify right side
    189,693,567.11x = 42,718,569,983,095,648
  5. Step 5: Solve for x
    x = 42,718,569,983,095,648/189,693,567.11
  6. Step 6: Final answer
    x = 225,197,778.90

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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.