Home / 120,296,887.04-166,009,864.32-65,292,742.40

Finding the Fourth Proportional to 120,296,887.04, 166,009,864.32 and 65,292,742.40

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Solution

The fourth proportional to 120,296,887.04, 166,009,864.32 and 65,292,742.40 is: 90,104,071.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,296,887.04 : 166,009,864.32 = 65,292,742.40 : x
  2. Step 2: Convert to fraction form
    120,296,887.04/166,009,864.32 = 65,292,742.40/x
  3. Step 3: Cross multiply
    120,296,887.04x = 166,009,864.32 × 65,292,742.40
  4. Step 4: Simplify right side
    120,296,887.04x = 10,839,239,306,904,710
  5. Step 5: Solve for x
    x = 10,839,239,306,904,710/120,296,887.04
  6. Step 6: Final answer
    x = 90,104,071.47

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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.