Home / 388,446,175.51-536,049,466.28-212,230,387.15

Finding the Fourth Proportional to 388,446,175.51, 536,049,466.28 and 212,230,387.15

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Solution

The fourth proportional to 388,446,175.51, 536,049,466.28 and 212,230,387.15 is: 292,874,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,446,175.51 : 536,049,466.28 = 212,230,387.15 : x
  2. Step 2: Convert to fraction form
    388,446,175.51/536,049,466.28 = 212,230,387.15/x
  3. Step 3: Cross multiply
    388,446,175.51x = 536,049,466.28 × 212,230,387.15
  4. Step 4: Simplify right side
    388,446,175.51x = 113,765,985,758,549,856
  5. Step 5: Solve for x
    x = 113,765,985,758,549,856/388,446,175.51
  6. Step 6: Final answer
    x = 292,874,516.30

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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.