Home / 77,679,764.82-107,197,547.36-42,872,454.24

Finding the Fourth Proportional to 77,679,764.82, 107,197,547.36 and 42,872,454.24

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Solution

The fourth proportional to 77,679,764.82, 107,197,547.36 and 42,872,454.24 is: 59,163,695.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,679,764.82 : 107,197,547.36 = 42,872,454.24 : x
  2. Step 2: Convert to fraction form
    77,679,764.82/107,197,547.36 = 42,872,454.24/x
  3. Step 3: Cross multiply
    77,679,764.82x = 107,197,547.36 × 42,872,454.24
  4. Step 4: Simplify right side
    77,679,764.82x = 4,595,821,943,617,471
  5. Step 5: Solve for x
    x = 4,595,821,943,617,471/77,679,764.82
  6. Step 6: Final answer
    x = 59,163,695.39

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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.