Home / 98,415,130.40-147,622,695.60-75,456,879.20

Finding the Fourth Proportional to 98,415,130.40, 147,622,695.60 and 75,456,879.20

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Solution

The fourth proportional to 98,415,130.40, 147,622,695.60 and 75,456,879.20 is: 113,185,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,415,130.40 : 147,622,695.60 = 75,456,879.20 : x
  2. Step 2: Convert to fraction form
    98,415,130.40/147,622,695.60 = 75,456,879.20/x
  3. Step 3: Cross multiply
    98,415,130.40x = 147,622,695.60 × 75,456,879.20
  4. Step 4: Simplify right side
    98,415,130.40x = 11,139,147,909,067,572
  5. Step 5: Solve for x
    x = 11,139,147,909,067,572/98,415,130.40
  6. Step 6: Final answer
    x = 113,185,318.80

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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.