Home / 85,814,070.98-128,725,072.22-28,311,367.46

Finding the Fourth Proportional to 85,814,070.98, 128,725,072.22 and 28,311,367.46

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Solution

The fourth proportional to 85,814,070.98, 128,725,072.22 and 28,311,367.46 is: 42,468,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,814,070.98 : 128,725,072.22 = 28,311,367.46 : x
  2. Step 2: Convert to fraction form
    85,814,070.98/128,725,072.22 = 28,311,367.46/x
  3. Step 3: Cross multiply
    85,814,070.98x = 128,725,072.22 × 28,311,367.46
  4. Step 4: Simplify right side
    85,814,070.98x = 3,644,382,820,362,610.50
  5. Step 5: Solve for x
    x = 3,644,382,820,362,610.50/85,814,070.98
  6. Step 6: Final answer
    x = 42,468,359.55

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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.