Home / 69,531,853.20-104,297,261.40-21,009,613.20

Finding the Fourth Proportional to 69,531,853.20, 104,297,261.40 and 21,009,613.20

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Solution

The fourth proportional to 69,531,853.20, 104,297,261.40 and 21,009,613.20 is: 31,514,263.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,531,853.20 : 104,297,261.40 = 21,009,613.20 : x
  2. Step 2: Convert to fraction form
    69,531,853.20/104,297,261.40 = 21,009,613.20/x
  3. Step 3: Cross multiply
    69,531,853.20x = 104,297,261.40 × 21,009,613.20
  4. Step 4: Simplify right side
    69,531,853.20x = 2,191,245,119,833,290.50
  5. Step 5: Solve for x
    x = 2,191,245,119,833,290.50/69,531,853.20
  6. Step 6: Final answer
    x = 31,514,263.16

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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.