Home / 85,235,967.55-117,657,621.80-55,869,191.47

Finding the Fourth Proportional to 85,235,967.55, 117,657,621.80 and 55,869,191.47

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Solution

The fourth proportional to 85,235,967.55, 117,657,621.80 and 55,869,191.47 is: 77,120,450.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,235,967.55 : 117,657,621.80 = 55,869,191.47 : x
  2. Step 2: Convert to fraction form
    85,235,967.55/117,657,621.80 = 55,869,191.47/x
  3. Step 3: Cross multiply
    85,235,967.55x = 117,657,621.80 × 55,869,191.47
  4. Step 4: Simplify right side
    85,235,967.55x = 6,573,436,199,969,700
  5. Step 5: Solve for x
    x = 6,573,436,199,969,700/85,235,967.55
  6. Step 6: Final answer
    x = 77,120,450.31

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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.