Home / 55,298,879.20-76,316,743.92-30,523,921.12

Finding the Fourth Proportional to 55,298,879.20, 76,316,743.92 and 30,523,921.12

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Solution

The fourth proportional to 55,298,879.20, 76,316,743.92 and 30,523,921.12 is: 42,125,379.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,298,879.20 : 76,316,743.92 = 30,523,921.12 : x
  2. Step 2: Convert to fraction form
    55,298,879.20/76,316,743.92 = 30,523,921.12/x
  3. Step 3: Cross multiply
    55,298,879.20x = 76,316,743.92 × 30,523,921.12
  4. Step 4: Simplify right side
    55,298,879.20x = 2,329,486,271,549,319.50
  5. Step 5: Solve for x
    x = 2,329,486,271,549,319.50/55,298,879.20
  6. Step 6: Final answer
    x = 42,125,379.49

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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.