Home / 78,104,878.56-107,784,730.08-43,297,480.80

Finding the Fourth Proportional to 78,104,878.56, 107,784,730.08 and 43,297,480.80

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Solution

The fourth proportional to 78,104,878.56, 107,784,730.08 and 43,297,480.80 is: 59,750,522.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,104,878.56 : 107,784,730.08 = 43,297,480.80 : x
  2. Step 2: Convert to fraction form
    78,104,878.56/107,784,730.08 = 43,297,480.80/x
  3. Step 3: Cross multiply
    78,104,878.56x = 107,784,730.08 × 43,297,480.80
  4. Step 4: Simplify right side
    78,104,878.56x = 4,666,807,281,171,982
  5. Step 5: Solve for x
    x = 4,666,807,281,171,982/78,104,878.56
  6. Step 6: Final answer
    x = 59,750,522.21

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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.