Home / 48,387,890.40-72,581,835.60-30,471,986.40

Finding the Fourth Proportional to 48,387,890.40, 72,581,835.60 and 30,471,986.40

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Solution

The fourth proportional to 48,387,890.40, 72,581,835.60 and 30,471,986.40 is: 45,707,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,387,890.40 : 72,581,835.60 = 30,471,986.40 : x
  2. Step 2: Convert to fraction form
    48,387,890.40/72,581,835.60 = 30,471,986.40/x
  3. Step 3: Cross multiply
    48,387,890.40x = 72,581,835.60 × 30,471,986.40
  4. Step 4: Simplify right side
    48,387,890.40x = 2,211,712,707,290,235.50
  5. Step 5: Solve for x
    x = 2,211,712,707,290,235.50/48,387,890.40
  6. Step 6: Final answer
    x = 45,707,979.60

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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.