Home / 30,276,993.80-45,422,445.15-8,711,774.12

Finding the Fourth Proportional to 30,276,993.80, 45,422,445.15 and 8,711,774.12

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Solution

The fourth proportional to 30,276,993.80, 45,422,445.15 and 8,711,774.12 is: 13,069,662.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276,993.80 : 45,422,445.15 = 8,711,774.12 : x
  2. Step 2: Convert to fraction form
    30,276,993.80/45,422,445.15 = 8,711,774.12/x
  3. Step 3: Cross multiply
    30,276,993.80x = 45,422,445.15 × 8,711,774.12
  4. Step 4: Simplify right side
    30,276,993.80x = 395,710,081,897,777.31
  5. Step 5: Solve for x
    x = 395,710,081,897,777.31/30,276,993.80
  6. Step 6: Final answer
    x = 13,069,662.22

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1.5x scale

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.