Home / 155,147,905.20-232,721,857.80-68,794,647.60

Finding the Fourth Proportional to 155,147,905.20, 232,721,857.80 and 68,794,647.60

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Solution

The fourth proportional to 155,147,905.20, 232,721,857.80 and 68,794,647.60 is: 103,191,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,147,905.20 : 232,721,857.80 = 68,794,647.60 : x
  2. Step 2: Convert to fraction form
    155,147,905.20/232,721,857.80 = 68,794,647.60/x
  3. Step 3: Cross multiply
    155,147,905.20x = 232,721,857.80 × 68,794,647.60
  4. Step 4: Simplify right side
    155,147,905.20x = 16,010,018,196,168,310
  5. Step 5: Solve for x
    x = 16,010,018,196,168,310/155,147,905.20
  6. Step 6: Final answer
    x = 103,191,971.40

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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.