Home / 103,346,144.40-155,019,216.60-70,609,378.80

Finding the Fourth Proportional to 103,346,144.40, 155,019,216.60 and 70,609,378.80

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Solution

The fourth proportional to 103,346,144.40, 155,019,216.60 and 70,609,378.80 is: 105,914,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,346,144.40 : 155,019,216.60 = 70,609,378.80 : x
  2. Step 2: Convert to fraction form
    103,346,144.40/155,019,216.60 = 70,609,378.80/x
  3. Step 3: Cross multiply
    103,346,144.40x = 155,019,216.60 × 70,609,378.80
  4. Step 4: Simplify right side
    103,346,144.40x = 10,945,810,586,188,648
  5. Step 5: Solve for x
    x = 10,945,810,586,188,648/103,346,144.40
  6. Step 6: Final answer
    x = 105,914,068.20

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1.5x scale

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.