Home / 152,488,600.80-210,435,900.12-82,873,985.10

Finding the Fourth Proportional to 152,488,600.80, 210,435,900.12 and 82,873,985.10

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Solution

The fourth proportional to 152,488,600.80, 210,435,900.12 and 82,873,985.10 is: 114,366,985.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,488,600.80 : 210,435,900.12 = 82,873,985.10 : x
  2. Step 2: Convert to fraction form
    152,488,600.80/210,435,900.12 = 82,873,985.10/x
  3. Step 3: Cross multiply
    152,488,600.80x = 210,435,900.12 × 82,873,985.10
  4. Step 4: Simplify right side
    152,488,600.80x = 17,439,661,651,049,968
  5. Step 5: Solve for x
    x = 17,439,661,651,049,968/152,488,600.80
  6. Step 6: Final answer
    x = 114,366,985.86

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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.