Home / 78,027,079-107,636,544.66-48,248,206.60

Finding the Fourth Proportional to 78,027,079, 107,636,544.66 and 48,248,206.60

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Solution

The fourth proportional to 78,027,079, 107,636,544.66 and 48,248,206.60 is: 66,557,281.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,027,079 : 107,636,544.66 = 48,248,206.60 : x
  2. Step 2: Convert to fraction form
    78,027,079/107,636,544.66 = 48,248,206.60/x
  3. Step 3: Cross multiply
    78,027,079x = 107,636,544.66 × 48,248,206.60
  4. Step 4: Simplify right side
    78,027,079x = 5,193,270,244,465,807
  5. Step 5: Solve for x
    x = 5,193,270,244,465,807/78,027,079
  6. Step 6: Final answer
    x = 66,557,281.28

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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.