Home / 77,102,400.90-115,653,994.88-25,984,862.58

Finding the Fourth Proportional to 77,102,400.90, 115,653,994.88 and 25,984,862.58

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Solution

The fourth proportional to 77,102,400.90, 115,653,994.88 and 25,984,862.58 is: 38,977,426.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,102,400.90 : 115,653,994.88 = 25,984,862.58 : x
  2. Step 2: Convert to fraction form
    77,102,400.90/115,653,994.88 = 25,984,862.58/x
  3. Step 3: Cross multiply
    77,102,400.90x = 115,653,994.88 × 25,984,862.58
  4. Step 4: Simplify right side
    77,102,400.90x = 3,005,253,163,654,899
  5. Step 5: Solve for x
    x = 3,005,253,163,654,899/77,102,400.90
  6. Step 6: Final answer
    x = 38,977,426.49

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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.