Home / 86,305,574.87-129,509,437.97-31,756,467.35

Finding the Fourth Proportional to 86,305,574.87, 129,509,437.97 and 31,756,467.35

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Solution

The fourth proportional to 86,305,574.87, 129,509,437.97 and 31,756,467.35 is: 47,653,494.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305,574.87 : 129,509,437.97 = 31,756,467.35 : x
  2. Step 2: Convert to fraction form
    86,305,574.87/129,509,437.97 = 31,756,467.35/x
  3. Step 3: Cross multiply
    86,305,574.87x = 129,509,437.97 × 31,756,467.35
  4. Step 4: Simplify right side
    86,305,574.87x = 4,112,762,237,604,825.50
  5. Step 5: Solve for x
    x = 4,112,762,237,604,825.50/86,305,574.87
  6. Step 6: Final answer
    x = 47,653,494.51

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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.