Home / 538,273,208.63-742,817,326.82-290,754,565.31

Finding the Fourth Proportional to 538,273,208.63, 742,817,326.82 and 290,754,565.31

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Solution

The fourth proportional to 538,273,208.63, 742,817,326.82 and 290,754,565.31 is: 401,241,461.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,273,208.63 : 742,817,326.82 = 290,754,565.31 : x
  2. Step 2: Convert to fraction form
    538,273,208.63/742,817,326.82 = 290,754,565.31/x
  3. Step 3: Cross multiply
    538,273,208.63x = 742,817,326.82 × 290,754,565.31
  4. Step 4: Simplify right side
    538,273,208.63x = 215,977,528,959,117,472
  5. Step 5: Solve for x
    x = 215,977,528,959,117,472/538,273,208.63
  6. Step 6: Final answer
    x = 401,241,461.58

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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.