Home / 30,766,816.39-42,471,280.29-19,170,109.47

Finding the Fourth Proportional to 30,766,816.39, 42,471,280.29 and 19,170,109.47

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Solution

The fourth proportional to 30,766,816.39, 42,471,280.29 and 19,170,109.47 is: 26,462,896.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,766,816.39 : 42,471,280.29 = 19,170,109.47 : x
  2. Step 2: Convert to fraction form
    30,766,816.39/42,471,280.29 = 19,170,109.47/x
  3. Step 3: Cross multiply
    30,766,816.39x = 42,471,280.29 × 19,170,109.47
  4. Step 4: Simplify right side
    30,766,816.39x = 814,179,092,482,646
  5. Step 5: Solve for x
    x = 814,179,092,482,646/30,766,816.39
  6. Step 6: Final answer
    x = 26,462,896.98

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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.