Home / 81,267,174,739.52-121,916,460,513.48-30,898,692,261.54

Finding the Fourth Proportional to 81,267,174,739.52, 121,916,460,513.48 and 30,898,692,261.54

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Solution

The fourth proportional to 81,267,174,739.52, 121,916,460,513.48 and 30,898,692,261.54 is: 46,354,007,101.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,267,174,739.52 : 121,916,460,513.48 = 30,898,692,261.54 : x
  2. Step 2: Convert to fraction form
    81,267,174,739.52/121,916,460,513.48 = 30,898,692,261.54/x
  3. Step 3: Cross multiply
    81,267,174,739.52x = 121,916,460,513.48 × 30,898,692,261.54
  4. Step 4: Simplify right side
    81,267,174,739.52x = 3,767,059,195,022,211,547,136
  5. Step 5: Solve for x
    x = 3,767,059,195,022,211,547,136/81,267,174,739.52
  6. Step 6: Final answer
    x = 46,354,007,101.84

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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.