Home / 72,609,758.88-100,203,567.12-40,016,810.40

Finding the Fourth Proportional to 72,609,758.88, 100,203,567.12 and 40,016,810.40

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Solution

The fourth proportional to 72,609,758.88, 100,203,567.12 and 40,016,810.40 is: 55,224,355.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,609,758.88 : 100,203,567.12 = 40,016,810.40 : x
  2. Step 2: Convert to fraction form
    72,609,758.88/100,203,567.12 = 40,016,810.40/x
  3. Step 3: Cross multiply
    72,609,758.88x = 100,203,567.12 × 40,016,810.40
  4. Step 4: Simplify right side
    72,609,758.88x = 4,009,827,146,844,714
  5. Step 5: Solve for x
    x = 4,009,827,146,844,714/72,609,758.88
  6. Step 6: Final answer
    x = 55,224,355.63

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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.