Home / 1,119,744,153.60-1,679,616,230.40-343,509,619.20

Finding the Fourth Proportional to 1,119,744,153.60, 1,679,616,230.40 and 343,509,619.20

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Solution

The fourth proportional to 1,119,744,153.60, 1,679,616,230.40 and 343,509,619.20 is: 515,264,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,744,153.60 : 1,679,616,230.40 = 343,509,619.20 : x
  2. Step 2: Convert to fraction form
    1,119,744,153.60/1,679,616,230.40 = 343,509,619.20/x
  3. Step 3: Cross multiply
    1,119,744,153.60x = 1,679,616,230.40 × 343,509,619.20
  4. Step 4: Simplify right side
    1,119,744,153.60x = 576,964,331,706,843,520
  5. Step 5: Solve for x
    x = 576,964,331,706,843,520/1,119,744,153.60
  6. Step 6: Final answer
    x = 515,264,428.80

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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.