Home / 70,333,693.60-105,500,540.40-39,596,720.80

Finding the Fourth Proportional to 70,333,693.60, 105,500,540.40 and 39,596,720.80

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Solution

The fourth proportional to 70,333,693.60, 105,500,540.40 and 39,596,720.80 is: 59,395,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,333,693.60 : 105,500,540.40 = 39,596,720.80 : x
  2. Step 2: Convert to fraction form
    70,333,693.60/105,500,540.40 = 39,596,720.80/x
  3. Step 3: Cross multiply
    70,333,693.60x = 105,500,540.40 × 39,596,720.80
  4. Step 4: Simplify right side
    70,333,693.60x = 4,177,475,442,467,920
  5. Step 5: Solve for x
    x = 4,177,475,442,467,920/70,333,693.60
  6. Step 6: Final answer
    x = 59,395,081.20

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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.