Home / 121,378,889.70-182,068,334.55-69,510,248.10

Finding the Fourth Proportional to 121,378,889.70, 182,068,334.55 and 69,510,248.10

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Solution

The fourth proportional to 121,378,889.70, 182,068,334.55 and 69,510,248.10 is: 104,265,372.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,378,889.70 : 182,068,334.55 = 69,510,248.10 : x
  2. Step 2: Convert to fraction form
    121,378,889.70/182,068,334.55 = 69,510,248.10/x
  3. Step 3: Cross multiply
    121,378,889.70x = 182,068,334.55 × 69,510,248.10
  4. Step 4: Simplify right side
    121,378,889.70x = 12,655,615,105,724,302
  5. Step 5: Solve for x
    x = 12,655,615,105,724,302/121,378,889.70
  6. Step 6: Final answer
    x = 104,265,372.15

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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.