Home / 589,967,999.80-884,951,999.70-406,301,990.20

Finding the Fourth Proportional to 589,967,999.80, 884,951,999.70 and 406,301,990.20

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Solution

The fourth proportional to 589,967,999.80, 884,951,999.70 and 406,301,990.20 is: 609,452,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,967,999.80 : 884,951,999.70 = 406,301,990.20 : x
  2. Step 2: Convert to fraction form
    589,967,999.80/884,951,999.70 = 406,301,990.20/x
  3. Step 3: Cross multiply
    589,967,999.80x = 884,951,999.70 × 406,301,990.20
  4. Step 4: Simplify right side
    589,967,999.80x = 359,557,758,709,579,840
  5. Step 5: Solve for x
    x = 359,557,758,709,579,840/589,967,999.80
  6. Step 6: Final answer
    x = 609,452,985.30

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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.