Home / 74,705,985.64-112,080,636.78-30,978,624.88

Finding the Fourth Proportional to 74,705,985.64, 112,080,636.78 and 30,978,624.88

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Solution

The fourth proportional to 74,705,985.64, 112,080,636.78 and 30,978,624.88 is: 46,476,918.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,705,985.64 : 112,080,636.78 = 30,978,624.88 : x
  2. Step 2: Convert to fraction form
    74,705,985.64/112,080,636.78 = 30,978,624.88/x
  3. Step 3: Cross multiply
    74,705,985.64x = 112,080,636.78 × 30,978,624.88
  4. Step 4: Simplify right side
    74,705,985.64x = 3,472,104,003,119,151
  5. Step 5: Solve for x
    x = 3,472,104,003,119,151/74,705,985.64
  6. Step 6: Final answer
    x = 46,476,918.46

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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.