Home / 75,508,672.40-113,291,002.20-72,709,312.40

Finding the Fourth Proportional to 75,508,672.40, 113,291,002.20 and 72,709,312.40

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Solution

The fourth proportional to 75,508,672.40, 113,291,002.20 and 72,709,312.40 is: 109,090,924.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,508,672.40 : 113,291,002.20 = 72,709,312.40 : x
  2. Step 2: Convert to fraction form
    75,508,672.40/113,291,002.20 = 72,709,312.40/x
  3. Step 3: Cross multiply
    75,508,672.40x = 113,291,002.20 × 72,709,312.40
  4. Step 4: Simplify right side
    75,508,672.40x = 8,237,310,871,068,888
  5. Step 5: Solve for x
    x = 8,237,310,871,068,888/75,508,672.40
  6. Step 6: Final answer
    x = 109,090,924.38

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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.