Home / 485,211,396.48-727,709,789.76-140,089,983.36

Finding the Fourth Proportional to 485,211,396.48, 727,709,789.76 and 140,089,983.36

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Solution

The fourth proportional to 485,211,396.48, 727,709,789.76 and 140,089,983.36 is: 210,103,994.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,211,396.48 : 727,709,789.76 = 140,089,983.36 : x
  2. Step 2: Convert to fraction form
    485,211,396.48/727,709,789.76 = 140,089,983.36/x
  3. Step 3: Cross multiply
    485,211,396.48x = 727,709,789.76 × 140,089,983.36
  4. Step 4: Simplify right side
    485,211,396.48x = 101,944,852,338,387,504
  5. Step 5: Solve for x
    x = 101,944,852,338,387,504/485,211,396.48
  6. Step 6: Final answer
    x = 210,103,994.01

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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.