Home / 212,921,601.60-319,382,402.40-154,722,907.20

Finding the Fourth Proportional to 212,921,601.60, 319,382,402.40 and 154,722,907.20

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Solution

The fourth proportional to 212,921,601.60, 319,382,402.40 and 154,722,907.20 is: 232,084,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,921,601.60 : 319,382,402.40 = 154,722,907.20 : x
  2. Step 2: Convert to fraction form
    212,921,601.60/319,382,402.40 = 154,722,907.20/x
  3. Step 3: Cross multiply
    212,921,601.60x = 319,382,402.40 × 154,722,907.20
  4. Step 4: Simplify right side
    212,921,601.60x = 49,415,773,807,848,248
  5. Step 5: Solve for x
    x = 49,415,773,807,848,248/212,921,601.60
  6. Step 6: Final answer
    x = 232,084,360.80

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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.