Home / 86,254,923.99-129,422,788.98-42,511,836.51

Finding the Fourth Proportional to 86,254,923.99, 129,422,788.98 and 42,511,836.51

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Solution

The fourth proportional to 86,254,923.99, 129,422,788.98 and 42,511,836.51 is: 63,787,667.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,254,923.99 : 129,422,788.98 = 42,511,836.51 : x
  2. Step 2: Convert to fraction form
    86,254,923.99/129,422,788.98 = 42,511,836.51/x
  3. Step 3: Cross multiply
    86,254,923.99x = 129,422,788.98 × 42,511,836.51
  4. Step 4: Simplify right side
    86,254,923.99x = 5,502,000,445,785,990
  5. Step 5: Solve for x
    x = 5,502,000,445,785,990/86,254,923.99
  6. Step 6: Final answer
    x = 63,787,667.90

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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.