Home / 623,702,649.20-860,709,672.42-345,244,172.72

Finding the Fourth Proportional to 623,702,649.20, 860,709,672.42 and 345,244,172.72

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Solution

The fourth proportional to 623,702,649.20, 860,709,672.42 and 345,244,172.72 is: 476,436,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,702,649.20 : 860,709,672.42 = 345,244,172.72 : x
  2. Step 2: Convert to fraction form
    623,702,649.20/860,709,672.42 = 345,244,172.72/x
  3. Step 3: Cross multiply
    623,702,649.20x = 860,709,672.42 × 345,244,172.72
  4. Step 4: Simplify right side
    623,702,649.20x = 297,154,998,806,745,088
  5. Step 5: Solve for x
    x = 297,154,998,806,745,088/623,702,649.20
  6. Step 6: Final answer
    x = 476,436,967.50

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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.