Home / 423,151,031.04-634,436,778.72-215,487,464.16

Finding the Fourth Proportional to 423,151,031.04, 634,436,778.72 and 215,487,464.16

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Solution

The fourth proportional to 423,151,031.04, 634,436,778.72 and 215,487,464.16 is: 323,083,633.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,151,031.04 : 634,436,778.72 = 215,487,464.16 : x
  2. Step 2: Convert to fraction form
    423,151,031.04/634,436,778.72 = 215,487,464.16/x
  3. Step 3: Cross multiply
    423,151,031.04x = 634,436,778.72 × 215,487,464.16
  4. Step 4: Simplify right side
    423,151,031.04x = 136,713,172,616,211,856
  5. Step 5: Solve for x
    x = 136,713,172,616,211,856/423,151,031.04
  6. Step 6: Final answer
    x = 323,083,633.47

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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.