Home / 81,721,911.84-112,777,007.52-45,053,795.04

Finding the Fourth Proportional to 81,721,911.84, 112,777,007.52 and 45,053,795.04

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Solution

The fourth proportional to 81,721,911.84, 112,777,007.52 and 45,053,795.04 is: 62,174,661.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,721,911.84 : 112,777,007.52 = 45,053,795.04 : x
  2. Step 2: Convert to fraction form
    81,721,911.84/112,777,007.52 = 45,053,795.04/x
  3. Step 3: Cross multiply
    81,721,911.84x = 112,777,007.52 × 45,053,795.04
  4. Step 4: Simplify right side
    81,721,911.84x = 5,081,032,182,030,618
  5. Step 5: Solve for x
    x = 5,081,032,182,030,618/81,721,911.84
  6. Step 6: Final answer
    x = 62,174,661.21

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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.