Home / 103,343,350.40-155,015,025.60-70,606,584.80

Finding the Fourth Proportional to 103,343,350.40, 155,015,025.60 and 70,606,584.80

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Solution

The fourth proportional to 103,343,350.40, 155,015,025.60 and 70,606,584.80 is: 105,909,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,343,350.40 : 155,015,025.60 = 70,606,584.80 : x
  2. Step 2: Convert to fraction form
    103,343,350.40/155,015,025.60 = 70,606,584.80/x
  3. Step 3: Cross multiply
    103,343,350.40x = 155,015,025.60 × 70,606,584.80
  4. Step 4: Simplify right side
    103,343,350.40x = 10,945,081,550,300,570
  5. Step 5: Solve for x
    x = 10,945,081,550,300,570/103,343,350.40
  6. Step 6: Final answer
    x = 105,909,877.20

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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.