Home / 81,686,870.83-122,556,208.60-29,163,415.46

Finding the Fourth Proportional to 81,686,870.83, 122,556,208.60 and 29,163,415.46

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Solution

The fourth proportional to 81,686,870.83, 122,556,208.60 and 29,163,415.46 is: 43,754,370.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,686,870.83 : 122,556,208.60 = 29,163,415.46 : x
  2. Step 2: Convert to fraction form
    81,686,870.83/122,556,208.60 = 29,163,415.46/x
  3. Step 3: Cross multiply
    81,686,870.83x = 122,556,208.60 × 29,163,415.46
  4. Step 4: Simplify right side
    81,686,870.83x = 3,574,157,628,027,898
  5. Step 5: Solve for x
    x = 3,574,157,628,027,898/81,686,870.83
  6. Step 6: Final answer
    x = 43,754,370.70

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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.