Home / 165,501,985.60-248,364,952.80-74,578,772.80

Finding the Fourth Proportional to 165,501,985.60, 248,364,952.80 and 74,578,772.80

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Solution

The fourth proportional to 165,501,985.60, 248,364,952.80 and 74,578,772.80 is: 111,918,617.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,501,985.60 : 248,364,952.80 = 74,578,772.80 : x
  2. Step 2: Convert to fraction form
    165,501,985.60/248,364,952.80 = 74,578,772.80/x
  3. Step 3: Cross multiply
    165,501,985.60x = 248,364,952.80 × 74,578,772.80
  4. Step 4: Simplify right side
    165,501,985.60x = 18,522,753,386,353,924
  5. Step 5: Solve for x
    x = 18,522,753,386,353,924/165,501,985.60
  6. Step 6: Final answer
    x = 111,918,617.29

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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.