Home / 1,175,460,018.60-1,763,376,651.90-399,178,828.20

Finding the Fourth Proportional to 1,175,460,018.60, 1,763,376,651.90 and 399,178,828.20

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Solution

The fourth proportional to 1,175,460,018.60, 1,763,376,651.90 and 399,178,828.20 is: 598,831,618.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,460,018.60 : 1,763,376,651.90 = 399,178,828.20 : x
  2. Step 2: Convert to fraction form
    1,175,460,018.60/1,763,376,651.90 = 399,178,828.20/x
  3. Step 3: Cross multiply
    1,175,460,018.60x = 1,763,376,651.90 × 399,178,828.20
  4. Step 4: Simplify right side
    1,175,460,018.60x = 703,902,625,580,681,344
  5. Step 5: Solve for x
    x = 703,902,625,580,681,344/1,175,460,018.60
  6. Step 6: Final answer
    x = 598,831,618.64

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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.