Home / 804,436,009.40-1,206,654,014.10-319,761,817.40

Finding the Fourth Proportional to 804,436,009.40, 1,206,654,014.10 and 319,761,817.40

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Solution

The fourth proportional to 804,436,009.40, 1,206,654,014.10 and 319,761,817.40 is: 479,642,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,436,009.40 : 1,206,654,014.10 = 319,761,817.40 : x
  2. Step 2: Convert to fraction form
    804,436,009.40/1,206,654,014.10 = 319,761,817.40/x
  3. Step 3: Cross multiply
    804,436,009.40x = 1,206,654,014.10 × 319,761,817.40
  4. Step 4: Simplify right side
    804,436,009.40x = 385,841,880,521,621,184
  5. Step 5: Solve for x
    x = 385,841,880,521,621,184/804,436,009.40
  6. Step 6: Final answer
    x = 479,642,726.10

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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.