Home / 373,912,993.50-515,990,424.87-208,901,802.30

Finding the Fourth Proportional to 373,912,993.50, 515,990,424.87 and 208,901,802.30

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Solution

The fourth proportional to 373,912,993.50, 515,990,424.87 and 208,901,802.30 is: 288,279,176.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,912,993.50 : 515,990,424.87 = 208,901,802.30 : x
  2. Step 2: Convert to fraction form
    373,912,993.50/515,990,424.87 = 208,901,802.30/x
  3. Step 3: Cross multiply
    373,912,993.50x = 515,990,424.87 × 208,901,802.30
  4. Step 4: Simplify right side
    373,912,993.50x = 107,791,329,724,885,744
  5. Step 5: Solve for x
    x = 107,791,329,724,885,744/373,912,993.50
  6. Step 6: Final answer
    x = 288,279,176.17

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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.