Home / 405,980,577.79-560,253,737.97-220,341,593.47

Finding the Fourth Proportional to 405,980,577.79, 560,253,737.97 and 220,341,593.47

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Solution

The fourth proportional to 405,980,577.79, 560,253,737.97 and 220,341,593.47 is: 304,071,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,980,577.79 : 560,253,737.97 = 220,341,593.47 : x
  2. Step 2: Convert to fraction form
    405,980,577.79/560,253,737.97 = 220,341,593.47/x
  3. Step 3: Cross multiply
    405,980,577.79x = 560,253,737.97 × 220,341,593.47
  4. Step 4: Simplify right side
    405,980,577.79x = 123,447,201,371,833,648
  5. Step 5: Solve for x
    x = 123,447,201,371,833,648/405,980,577.79
  6. Step 6: Final answer
    x = 304,071,692.40

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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.