Home / 81,267,174,746.40-121,916,460,523.78-30,898,692,268.44

Finding the Fourth Proportional to 81,267,174,746.40, 121,916,460,523.78 and 30,898,692,268.44

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Solution

The fourth proportional to 81,267,174,746.40, 121,916,460,523.78 and 30,898,692,268.44 is: 46,354,007,112.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,267,174,746.40 : 121,916,460,523.78 = 30,898,692,268.44 : x
  2. Step 2: Convert to fraction form
    81,267,174,746.40/121,916,460,523.78 = 30,898,692,268.44/x
  3. Step 3: Cross multiply
    81,267,174,746.40x = 121,916,460,523.78 × 30,898,692,268.44
  4. Step 4: Simplify right side
    81,267,174,746.40x = 3,767,059,196,181,691,236,352
  5. Step 5: Solve for x
    x = 3,767,059,196,181,691,236,352/81,267,174,746.40
  6. Step 6: Final answer
    x = 46,354,007,112.18

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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.