Home / 30,676,776.84-42,349,292.78-19,078,077.02

Finding the Fourth Proportional to 30,676,776.84, 42,349,292.78 and 19,078,077.02

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Solution

The fourth proportional to 30,676,776.84, 42,349,292.78 and 19,078,077.02 is: 26,337,286.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,676,776.84 : 42,349,292.78 = 19,078,077.02 : x
  2. Step 2: Convert to fraction form
    30,676,776.84/42,349,292.78 = 19,078,077.02/x
  3. Step 3: Cross multiply
    30,676,776.84x = 42,349,292.78 × 19,078,077.02
  4. Step 4: Simplify right side
    30,676,776.84x = 807,943,069,092,233.12
  5. Step 5: Solve for x
    x = 807,943,069,092,233.12/30,676,776.84
  6. Step 6: Final answer
    x = 26,337,286.78

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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.