Home / 215,531,312.85-323,076,109.89-163,605,993.45

Finding the Fourth Proportional to 215,531,312.85, 323,076,109.89 and 163,605,993.45

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Solution

The fourth proportional to 215,531,312.85, 323,076,109.89 and 163,605,993.45 is: 245,241,339.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,531,312.85 : 323,076,109.89 = 163,605,993.45 : x
  2. Step 2: Convert to fraction form
    215,531,312.85/323,076,109.89 = 163,605,993.45/x
  3. Step 3: Cross multiply
    215,531,312.85x = 323,076,109.89 × 163,605,993.45
  4. Step 4: Simplify right side
    215,531,312.85x = 52,857,187,918,514,816
  5. Step 5: Solve for x
    x = 52,857,187,918,514,816/215,531,312.85
  6. Step 6: Final answer
    x = 245,241,339.74

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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.