Home / 30,767,309.40-42,471,960.42-19,170,602.47

Finding the Fourth Proportional to 30,767,309.40, 42,471,960.42 and 19,170,602.47

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Solution

The fourth proportional to 30,767,309.40, 42,471,960.42 and 19,170,602.47 is: 26,463,577.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,767,309.40 : 42,471,960.42 = 19,170,602.47 : x
  2. Step 2: Convert to fraction form
    30,767,309.40/42,471,960.42 = 19,170,602.47/x
  3. Step 3: Cross multiply
    30,767,309.40x = 42,471,960.42 × 19,170,602.47
  4. Step 4: Simplify right side
    30,767,309.40x = 814,213,069,333,394.25
  5. Step 5: Solve for x
    x = 814,213,069,333,394.25/30,767,309.40
  6. Step 6: Final answer
    x = 26,463,577.26

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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.