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Finding the Fourth Proportional to 121,865,552.40, 182,692,040.40 and 73,362,703.80

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Solution

The fourth proportional to 121,865,552.40, 182,692,040.40 and 73,362,703.80 is: 109,980,070.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,865,552.40 : 182,692,040.40 = 73,362,703.80 : x
  2. Step 2: Convert to fraction form
    121,865,552.40/182,692,040.40 = 73,362,703.80/x
  3. Step 3: Cross multiply
    121,865,552.40x = 182,692,040.40 × 73,362,703.80
  4. Step 4: Simplify right side
    121,865,552.40x = 13,402,782,046,482,834
  5. Step 5: Solve for x
    x = 13,402,782,046,482,834/121,865,552.40
  6. Step 6: Final answer
    x = 109,980,070.52

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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.