Home / 72,808,596.77-100,475,266.32-39,768,867

Finding the Fourth Proportional to 72,808,596.77, 100,475,266.32 and 39,768,867

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Solution

The fourth proportional to 72,808,596.77, 100,475,266.32 and 39,768,867 is: 54,880,710.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,808,596.77 : 100,475,266.32 = 39,768,867 : x
  2. Step 2: Convert to fraction form
    72,808,596.77/100,475,266.32 = 39,768,867/x
  3. Step 3: Cross multiply
    72,808,596.77x = 100,475,266.32 × 39,768,867
  4. Step 4: Simplify right side
    72,808,596.77x = 3,995,787,503,069,659
  5. Step 5: Solve for x
    x = 3,995,787,503,069,659/72,808,596.77
  6. Step 6: Final answer
    x = 54,880,710.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.