Home / 78,756,268.64-108,676,559.40-49,378,210.16

Finding the Fourth Proportional to 78,756,268.64, 108,676,559.40 and 49,378,210.16

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Solution

The fourth proportional to 78,756,268.64, 108,676,559.40 and 49,378,210.16 is: 68,137,483.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,756,268.64 : 108,676,559.40 = 49,378,210.16 : x
  2. Step 2: Convert to fraction form
    78,756,268.64/108,676,559.40 = 49,378,210.16/x
  3. Step 3: Cross multiply
    78,756,268.64x = 108,676,559.40 × 49,378,210.16
  4. Step 4: Simplify right side
    78,756,268.64x = 5,366,253,989,518,923
  5. Step 5: Solve for x
    x = 5,366,253,989,518,923/78,756,268.64
  6. Step 6: Final answer
    x = 68,137,483.94

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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.