Home / 87,674,221.84-121,007,539.56-52,872,578.32

Finding the Fourth Proportional to 87,674,221.84, 121,007,539.56 and 52,872,578.32

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Solution

The fourth proportional to 87,674,221.84, 121,007,539.56 and 52,872,578.32 is: 72,974,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,674,221.84 : 121,007,539.56 = 52,872,578.32 : x
  2. Step 2: Convert to fraction form
    87,674,221.84/121,007,539.56 = 52,872,578.32/x
  3. Step 3: Cross multiply
    87,674,221.84x = 121,007,539.56 × 52,872,578.32
  4. Step 4: Simplify right side
    87,674,221.84x = 6,397,980,612,696,599
  5. Step 5: Solve for x
    x = 6,397,980,612,696,599/87,674,221.84
  6. Step 6: Final answer
    x = 72,974,478.45

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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.