Home / 75,508,675.40-113,291,006.70-72,709,315.40

Finding the Fourth Proportional to 75,508,675.40, 113,291,006.70 and 72,709,315.40

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Solution

The fourth proportional to 75,508,675.40, 113,291,006.70 and 72,709,315.40 is: 109,090,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,508,675.40 : 113,291,006.70 = 72,709,315.40 : x
  2. Step 2: Convert to fraction form
    75,508,675.40/113,291,006.70 = 72,709,315.40/x
  3. Step 3: Cross multiply
    75,508,675.40x = 113,291,006.70 × 72,709,315.40
  4. Step 4: Simplify right side
    75,508,675.40x = 8,237,311,538,133,814
  5. Step 5: Solve for x
    x = 8,237,311,538,133,814/75,508,675.40
  6. Step 6: Final answer
    x = 109,090,928.88

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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.