Home / 209,615,293.31-289,257,298.20-115,529,153.63

Finding the Fourth Proportional to 209,615,293.31, 289,257,298.20 and 115,529,153.63

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Solution

The fourth proportional to 209,615,293.31, 289,257,298.20 and 115,529,153.63 is: 159,423,724.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,615,293.31 : 289,257,298.20 = 115,529,153.63 : x
  2. Step 2: Convert to fraction form
    209,615,293.31/289,257,298.20 = 115,529,153.63/x
  3. Step 3: Cross multiply
    209,615,293.31x = 289,257,298.20 × 115,529,153.63
  4. Step 4: Simplify right side
    209,615,293.31x = 33,417,650,840,900,236
  5. Step 5: Solve for x
    x = 33,417,650,840,900,236/209,615,293.31
  6. Step 6: Final answer
    x = 159,423,724.83

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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.