Home / 87,721,767.20-121,068,707.32-50,544,929.84

Finding the Fourth Proportional to 87,721,767.20, 121,068,707.32 and 50,544,929.84

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Solution

The fourth proportional to 87,721,767.20, 121,068,707.32 and 50,544,929.84 is: 69,759,302.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,721,767.20 : 121,068,707.32 = 50,544,929.84 : x
  2. Step 2: Convert to fraction form
    87,721,767.20/121,068,707.32 = 50,544,929.84/x
  3. Step 3: Cross multiply
    87,721,767.20x = 121,068,707.32 × 50,544,929.84
  4. Step 4: Simplify right side
    87,721,767.20x = 6,119,409,317,308,895
  5. Step 5: Solve for x
    x = 6,119,409,317,308,895/87,721,767.20
  6. Step 6: Final answer
    x = 69,759,302.77

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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.