Home / 519,998,449.20-780,300,030.60-213,510,519.60

Finding the Fourth Proportional to 519,998,449.20, 780,300,030.60 and 213,510,519.60

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Solution

The fourth proportional to 519,998,449.20, 780,300,030.60 and 213,510,519.60 is: 320,389,926.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,998,449.20 : 780,300,030.60 = 213,510,519.60 : x
  2. Step 2: Convert to fraction form
    519,998,449.20/780,300,030.60 = 213,510,519.60/x
  3. Step 3: Cross multiply
    519,998,449.20x = 780,300,030.60 × 213,510,519.60
  4. Step 4: Simplify right side
    519,998,449.20x = 166,602,264,977,301,888
  5. Step 5: Solve for x
    x = 166,602,264,977,301,888/519,998,449.20
  6. Step 6: Final answer
    x = 320,389,926.61

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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.