Home / 78,718,867.20-118,078,300.80-37,771,338.15

Finding the Fourth Proportional to 78,718,867.20, 118,078,300.80 and 37,771,338.15

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Solution

The fourth proportional to 78,718,867.20, 118,078,300.80 and 37,771,338.15 is: 56,657,007.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,718,867.20 : 118,078,300.80 = 37,771,338.15 : x
  2. Step 2: Convert to fraction form
    78,718,867.20/118,078,300.80 = 37,771,338.15/x
  3. Step 3: Cross multiply
    78,718,867.20x = 118,078,300.80 × 37,771,338.15
  4. Step 4: Simplify right side
    78,718,867.20x = 4,459,975,427,694,215
  5. Step 5: Solve for x
    x = 4,459,975,427,694,215/78,718,867.20
  6. Step 6: Final answer
    x = 56,657,007.23

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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.