Home / 915,902,776,072.84-1,374,481,721,389.30-319,662,643,359.88

Finding the Fourth Proportional to 915,902,776,072.84, 1,374,481,721,389.30 and 319,662,643,359.88

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Solution

The fourth proportional to 915,902,776,072.84, 1,374,481,721,389.30 and 319,662,643,359.88 is: 479,712,991,146.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,902,776,072.84 : 1,374,481,721,389.30 = 319,662,643,359.88 : x
  2. Step 2: Convert to fraction form
    915,902,776,072.84/1,374,481,721,389.30 = 319,662,643,359.88/x
  3. Step 3: Cross multiply
    915,902,776,072.84x = 1,374,481,721,389.30 × 319,662,643,359.88
  4. Step 4: Simplify right side
    915,902,776,072.84x = 439,370,460,309,141,753,692,160
  5. Step 5: Solve for x
    x = 439,370,460,309,141,753,692,160/915,902,776,072.84
  6. Step 6: Final answer
    x = 479,712,991,146.34

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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.