Home / 78,010,073.55-117,015,110.33-39,746,321.55

Finding the Fourth Proportional to 78,010,073.55, 117,015,110.33 and 39,746,321.55

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Solution

The fourth proportional to 78,010,073.55, 117,015,110.33 and 39,746,321.55 is: 59,619,482.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,010,073.55 : 117,015,110.33 = 39,746,321.55 : x
  2. Step 2: Convert to fraction form
    78,010,073.55/117,015,110.33 = 39,746,321.55/x
  3. Step 3: Cross multiply
    78,010,073.55x = 117,015,110.33 × 39,746,321.55
  4. Step 4: Simplify right side
    78,010,073.55x = 4,650,920,201,186,175
  5. Step 5: Solve for x
    x = 4,650,920,201,186,175/78,010,073.55
  6. Step 6: Final answer
    x = 59,619,482.33

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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.