Home / 212,947,467.40-293,868,390.78-115,162,323.40

Finding the Fourth Proportional to 212,947,467.40, 293,868,390.78 and 115,162,323.40

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Solution

The fourth proportional to 212,947,467.40, 293,868,390.78 and 115,162,323.40 is: 158,924,485.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,947,467.40 : 293,868,390.78 = 115,162,323.40 : x
  2. Step 2: Convert to fraction form
    212,947,467.40/293,868,390.78 = 115,162,323.40/x
  3. Step 3: Cross multiply
    212,947,467.40x = 293,868,390.78 × 115,162,323.40
  4. Step 4: Simplify right side
    212,947,467.40x = 33,842,566,656,043,936
  5. Step 5: Solve for x
    x = 33,842,566,656,043,936/212,947,467.40
  6. Step 6: Final answer
    x = 158,924,485.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.