Home / 30,276,994.80-45,422,446.65-8,711,775.12

Finding the Fourth Proportional to 30,276,994.80, 45,422,446.65 and 8,711,775.12

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Solution

The fourth proportional to 30,276,994.80, 45,422,446.65 and 8,711,775.12 is: 13,069,663.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276,994.80 : 45,422,446.65 = 8,711,775.12 : x
  2. Step 2: Convert to fraction form
    30,276,994.80/45,422,446.65 = 8,711,775.12/x
  3. Step 3: Cross multiply
    30,276,994.80x = 45,422,446.65 × 8,711,775.12
  4. Step 4: Simplify right side
    30,276,994.80x = 395,710,140,614,997.31
  5. Step 5: Solve for x
    x = 395,710,140,614,997.31/30,276,994.80
  6. Step 6: Final answer
    x = 13,069,663.72

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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.