Home / 787,968,007.60-1,181,952,011.40-213,539,335.60

Finding the Fourth Proportional to 787,968,007.60, 1,181,952,011.40 and 213,539,335.60

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Solution

The fourth proportional to 787,968,007.60, 1,181,952,011.40 and 213,539,335.60 is: 320,309,003.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,968,007.60 : 1,181,952,011.40 = 213,539,335.60 : x
  2. Step 2: Convert to fraction form
    787,968,007.60/1,181,952,011.40 = 213,539,335.60/x
  3. Step 3: Cross multiply
    787,968,007.60x = 1,181,952,011.40 × 213,539,335.60
  4. Step 4: Simplify right side
    787,968,007.60x = 252,393,247,225,439,648
  5. Step 5: Solve for x
    x = 252,393,247,225,439,648/787,968,007.60
  6. Step 6: Final answer
    x = 320,309,003.40

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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.