Home / 218,754,080.20-328,089,129.90-65,405,139.40

Finding the Fourth Proportional to 218,754,080.20, 328,089,129.90 and 65,405,139.40

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Solution

The fourth proportional to 218,754,080.20, 328,089,129.90 and 65,405,139.40 is: 98,095,154.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,754,080.20 : 328,089,129.90 = 65,405,139.40 : x
  2. Step 2: Convert to fraction form
    218,754,080.20/328,089,129.90 = 65,405,139.40/x
  3. Step 3: Cross multiply
    218,754,080.20x = 328,089,129.90 × 65,405,139.40
  4. Step 4: Simplify right side
    218,754,080.20x = 21,458,715,276,734,208
  5. Step 5: Solve for x
    x = 21,458,715,276,734,208/218,754,080.20
  6. Step 6: Final answer
    x = 98,095,154.42

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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.