Home / 79,131,190.80-118,602,307.80-40,772,960.40

Finding the Fourth Proportional to 79,131,190.80, 118,602,307.80 and 40,772,960.40

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Solution

The fourth proportional to 79,131,190.80, 118,602,307.80 and 40,772,960.40 is: 61,110,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,131,190.80 : 118,602,307.80 = 40,772,960.40 : x
  2. Step 2: Convert to fraction form
    79,131,190.80/118,602,307.80 = 40,772,960.40/x
  3. Step 3: Cross multiply
    79,131,190.80x = 118,602,307.80 × 40,772,960.40
  4. Step 4: Simplify right side
    79,131,190.80x = 4,835,767,199,278,011
  5. Step 5: Solve for x
    x = 4,835,767,199,278,011/79,131,190.80
  6. Step 6: Final answer
    x = 61,110,759.87

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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.