Home / 13,162,120,716.54-18,163,761,796.02-7,140,626,120.52

Finding the Fourth Proportional to 13,162,120,716.54, 18,163,761,796.02 and 7,140,626,120.52

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Solution

The fourth proportional to 13,162,120,716.54, 18,163,761,796.02 and 7,140,626,120.52 is: 9,854,083,146.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162,120,716.54 : 18,163,761,796.02 = 7,140,626,120.52 : x
  2. Step 2: Convert to fraction form
    13,162,120,716.54/18,163,761,796.02 = 7,140,626,120.52/x
  3. Step 3: Cross multiply
    13,162,120,716.54x = 18,163,761,796.02 × 7,140,626,120.52
  4. Step 4: Simplify right side
    13,162,120,716.54x = 129,700,631,927,563,698,176
  5. Step 5: Solve for x
    x = 129,700,631,927,563,698,176/13,162,120,716.54
  6. Step 6: Final answer
    x = 9,854,083,146.69

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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.