Home / 113,623,403.60-170,435,105.40-78,855,352.40

Finding the Fourth Proportional to 113,623,403.60, 170,435,105.40 and 78,855,352.40

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Solution

The fourth proportional to 113,623,403.60, 170,435,105.40 and 78,855,352.40 is: 118,283,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,623,403.60 : 170,435,105.40 = 78,855,352.40 : x
  2. Step 2: Convert to fraction form
    113,623,403.60/170,435,105.40 = 78,855,352.40/x
  3. Step 3: Cross multiply
    113,623,403.60x = 170,435,105.40 × 78,855,352.40
  4. Step 4: Simplify right side
    113,623,403.60x = 13,439,720,297,648,144
  5. Step 5: Solve for x
    x = 13,439,720,297,648,144/113,623,403.60
  6. Step 6: Final answer
    x = 118,283,028.60

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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.