Home / 86,305,573.37-129,509,435.72-31,756,465.85

Finding the Fourth Proportional to 86,305,573.37, 129,509,435.72 and 31,756,465.85

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Solution

The fourth proportional to 86,305,573.37, 129,509,435.72 and 31,756,465.85 is: 47,653,492.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305,573.37 : 129,509,435.72 = 31,756,465.85 : x
  2. Step 2: Convert to fraction form
    86,305,573.37/129,509,435.72 = 31,756,465.85/x
  3. Step 3: Cross multiply
    86,305,573.37x = 129,509,435.72 × 31,756,465.85
  4. Step 4: Simplify right side
    86,305,573.37x = 4,112,761,971,888,620.50
  5. Step 5: Solve for x
    x = 4,112,761,971,888,620.50/86,305,573.37
  6. Step 6: Final answer
    x = 47,653,492.25

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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.