Home / 105,422,431.71-157,927,713.50-72,627,207.63

Finding the Fourth Proportional to 105,422,431.71, 157,927,713.50 and 72,627,207.63

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Solution

The fourth proportional to 105,422,431.71, 157,927,713.50 and 72,627,207.63 is: 108,798,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,422,431.71 : 157,927,713.50 = 72,627,207.63 : x
  2. Step 2: Convert to fraction form
    105,422,431.71/157,927,713.50 = 72,627,207.63/x
  3. Step 3: Cross multiply
    105,422,431.71x = 157,927,713.50 × 72,627,207.63
  4. Step 4: Simplify right side
    105,422,431.71x = 11,469,848,838,532,518
  5. Step 5: Solve for x
    x = 11,469,848,838,532,518/105,422,431.71
  6. Step 6: Final answer
    x = 108,798,940.15

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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.