Home / 72,808,598.27-100,475,268.39-39,768,868.50

Finding the Fourth Proportional to 72,808,598.27, 100,475,268.39 and 39,768,868.50

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Solution

The fourth proportional to 72,808,598.27, 100,475,268.39 and 39,768,868.50 is: 54,880,712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,808,598.27 : 100,475,268.39 = 39,768,868.50 : x
  2. Step 2: Convert to fraction form
    72,808,598.27/100,475,268.39 = 39,768,868.50/x
  3. Step 3: Cross multiply
    72,808,598.27x = 100,475,268.39 × 39,768,868.50
  4. Step 4: Simplify right side
    72,808,598.27x = 3,995,787,736,104,116.50
  5. Step 5: Solve for x
    x = 3,995,787,736,104,116.50/72,808,598.27
  6. Step 6: Final answer
    x = 54,880,712.32

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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.