Home / 449,147,667.52-619,789,188-253,596,681.28

Finding the Fourth Proportional to 449,147,667.52, 619,789,188 and 253,596,681.28

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Solution

The fourth proportional to 449,147,667.52, 619,789,188 and 253,596,681.28 is: 349,943,888.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,147,667.52 : 619,789,188 = 253,596,681.28 : x
  2. Step 2: Convert to fraction form
    449,147,667.52/619,789,188 = 253,596,681.28/x
  3. Step 3: Cross multiply
    449,147,667.52x = 619,789,188 × 253,596,681.28
  4. Step 4: Simplify right side
    449,147,667.52x = 157,176,481,170,026,016
  5. Step 5: Solve for x
    x = 157,176,481,170,026,016/449,147,667.52
  6. Step 6: Final answer
    x = 349,943,888.25

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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.