Home / 103,558,449.60-155,393,661.60-42,980,299.20

Finding the Fourth Proportional to 103,558,449.60, 155,393,661.60 and 42,980,299.20

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Solution

The fourth proportional to 103,558,449.60, 155,393,661.60 and 42,980,299.20 is: 64,493,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,558,449.60 : 155,393,661.60 = 42,980,299.20 : x
  2. Step 2: Convert to fraction form
    103,558,449.60/155,393,661.60 = 42,980,299.20/x
  3. Step 3: Cross multiply
    103,558,449.60x = 155,393,661.60 × 42,980,299.20
  4. Step 4: Simplify right side
    103,558,449.60x = 6,678,866,069,351,551
  5. Step 5: Solve for x
    x = 6,678,866,069,351,551/103,558,449.60
  6. Step 6: Final answer
    x = 64,493,685.40

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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.