Home / 81,157,009.11-112,007,044.69-45,395,437.34

Finding the Fourth Proportional to 81,157,009.11, 112,007,044.69 and 45,395,437.34

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Solution

The fourth proportional to 81,157,009.11, 112,007,044.69 and 45,395,437.34 is: 62,651,505.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,157,009.11 : 112,007,044.69 = 45,395,437.34 : x
  2. Step 2: Convert to fraction form
    81,157,009.11/112,007,044.69 = 45,395,437.34/x
  3. Step 3: Cross multiply
    81,157,009.11x = 112,007,044.69 × 45,395,437.34
  4. Step 4: Simplify right side
    81,157,009.11x = 5,084,608,778,076,463
  5. Step 5: Solve for x
    x = 5,084,608,778,076,463/81,157,009.11
  6. Step 6: Final answer
    x = 62,651,505.20

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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.