Home / 77,288,009.40-115,932,014.10-73,508,873.40

Finding the Fourth Proportional to 77,288,009.40, 115,932,014.10 and 73,508,873.40

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Solution

The fourth proportional to 77,288,009.40, 115,932,014.10 and 73,508,873.40 is: 110,263,310.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,288,009.40 : 115,932,014.10 = 73,508,873.40 : x
  2. Step 2: Convert to fraction form
    77,288,009.40/115,932,014.10 = 73,508,873.40/x
  3. Step 3: Cross multiply
    77,288,009.40x = 115,932,014.10 × 73,508,873.40
  4. Step 4: Simplify right side
    77,288,009.40x = 8,522,031,747,483,915
  5. Step 5: Solve for x
    x = 8,522,031,747,483,915/77,288,009.40
  6. Step 6: Final answer
    x = 110,263,310.10

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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.