Home / 19,319,613.60-28,979,420.40-8,702,781.60

Finding the Fourth Proportional to 19,319,613.60, 28,979,420.40 and 8,702,781.60

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Solution

The fourth proportional to 19,319,613.60, 28,979,420.40 and 8,702,781.60 is: 13,054,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319,613.60 : 28,979,420.40 = 8,702,781.60 : x
  2. Step 2: Convert to fraction form
    19,319,613.60/28,979,420.40 = 8,702,781.60/x
  3. Step 3: Cross multiply
    19,319,613.60x = 28,979,420.40 × 8,702,781.60
  4. Step 4: Simplify right side
    19,319,613.60x = 252,201,566,635,784.62
  5. Step 5: Solve for x
    x = 252,201,566,635,784.62/19,319,613.60
  6. Step 6: Final answer
    x = 13,054,172.40

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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.