Home / 521,185,537.51-781,777,646.06-133,008,376.58

Finding the Fourth Proportional to 521,185,537.51, 781,777,646.06 and 133,008,376.58

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Solution

The fourth proportional to 521,185,537.51, 781,777,646.06 and 133,008,376.58 is: 199,512,396.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,185,537.51 : 781,777,646.06 = 133,008,376.58 : x
  2. Step 2: Convert to fraction form
    521,185,537.51/781,777,646.06 = 133,008,376.58/x
  3. Step 3: Cross multiply
    521,185,537.51x = 781,777,646.06 × 133,008,376.58
  4. Step 4: Simplify right side
    521,185,537.51x = 103,982,975,547,213,488
  5. Step 5: Solve for x
    x = 103,982,975,547,213,488/521,185,537.51
  6. Step 6: Final answer
    x = 199,512,396.38

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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.