Home / 75,508,670.40-113,290,999.20-72,709,310.40

Finding the Fourth Proportional to 75,508,670.40, 113,290,999.20 and 72,709,310.40

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Solution

The fourth proportional to 75,508,670.40, 113,290,999.20 and 72,709,310.40 is: 109,090,921.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,508,670.40 : 113,290,999.20 = 72,709,310.40 : x
  2. Step 2: Convert to fraction form
    75,508,670.40/113,290,999.20 = 72,709,310.40/x
  3. Step 3: Cross multiply
    75,508,670.40x = 113,290,999.20 × 72,709,310.40
  4. Step 4: Simplify right side
    75,508,670.40x = 8,237,310,426,358,953
  5. Step 5: Solve for x
    x = 8,237,310,426,358,953/75,508,670.40
  6. Step 6: Final answer
    x = 109,090,921.38

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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.