Home / 130,825,557.44-180,543,120.32-72,092,005.96

Finding the Fourth Proportional to 130,825,557.44, 180,543,120.32 and 72,092,005.96

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Solution

The fourth proportional to 130,825,557.44, 180,543,120.32 and 72,092,005.96 is: 99,489,090.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,825,557.44 : 180,543,120.32 = 72,092,005.96 : x
  2. Step 2: Convert to fraction form
    130,825,557.44/180,543,120.32 = 72,092,005.96/x
  3. Step 3: Cross multiply
    130,825,557.44x = 180,543,120.32 × 72,092,005.96
  4. Step 4: Simplify right side
    130,825,557.44x = 13,015,715,706,146,436
  5. Step 5: Solve for x
    x = 13,015,715,706,146,436/130,825,557.44
  6. Step 6: Final answer
    x = 99,489,090.36

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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.