Home / 314,928,007.80-472,392,011.70-178,879,111.80

Finding the Fourth Proportional to 314,928,007.80, 472,392,011.70 and 178,879,111.80

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Solution

The fourth proportional to 314,928,007.80, 472,392,011.70 and 178,879,111.80 is: 268,318,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,007.80 : 472,392,011.70 = 178,879,111.80 : x
  2. Step 2: Convert to fraction form
    314,928,007.80/472,392,011.70 = 178,879,111.80/x
  3. Step 3: Cross multiply
    314,928,007.80x = 472,392,011.70 × 178,879,111.80
  4. Step 4: Simplify right side
    314,928,007.80x = 84,501,063,474,311,216
  5. Step 5: Solve for x
    x = 84,501,063,474,311,216/314,928,007.80
  6. Step 6: Final answer
    x = 268,318,667.70

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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.