Home / 75,555,720.40-113,361,574.20-72,756,360.40

Finding the Fourth Proportional to 75,555,720.40, 113,361,574.20 and 72,756,360.40

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Solution

The fourth proportional to 75,555,720.40, 113,361,574.20 and 72,756,360.40 is: 109,161,497.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,555,720.40 : 113,361,574.20 = 72,756,360.40 : x
  2. Step 2: Convert to fraction form
    75,555,720.40/113,361,574.20 = 72,756,360.40/x
  3. Step 3: Cross multiply
    75,555,720.40x = 113,361,574.20 × 72,756,360.40
  4. Step 4: Simplify right side
    75,555,720.40x = 8,247,775,548,006,543
  5. Step 5: Solve for x
    x = 8,247,775,548,006,543/75,555,720.40
  6. Step 6: Final answer
    x = 109,161,497.03

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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.