Home / 314,928,015.20-472,392,022.80-263,909,679.20

Finding the Fourth Proportional to 314,928,015.20, 472,392,022.80 and 263,909,679.20

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Solution

The fourth proportional to 314,928,015.20, 472,392,022.80 and 263,909,679.20 is: 395,864,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,015.20 : 472,392,022.80 = 263,909,679.20 : x
  2. Step 2: Convert to fraction form
    314,928,015.20/472,392,022.80 = 263,909,679.20/x
  3. Step 3: Cross multiply
    314,928,015.20x = 472,392,022.80 × 263,909,679.20
  4. Step 4: Simplify right side
    314,928,015.20x = 124,668,827,193,787,088
  5. Step 5: Solve for x
    x = 124,668,827,193,787,088/314,928,015.20
  6. Step 6: Final answer
    x = 395,864,518.80

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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.