Home / 103,437,045.21-155,178,273.74-30,659,439.45

Finding the Fourth Proportional to 103,437,045.21, 155,178,273.74 and 30,659,439.45

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Solution

The fourth proportional to 103,437,045.21, 155,178,273.74 and 30,659,439.45 is: 45,995,889.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,437,045.21 : 155,178,273.74 = 30,659,439.45 : x
  2. Step 2: Convert to fraction form
    103,437,045.21/155,178,273.74 = 30,659,439.45/x
  3. Step 3: Cross multiply
    103,437,045.21x = 155,178,273.74 × 30,659,439.45
  4. Step 4: Simplify right side
    103,437,045.21x = 4,757,678,887,533,758
  5. Step 5: Solve for x
    x = 4,757,678,887,533,758/103,437,045.21
  6. Step 6: Final answer
    x = 45,995,889.36

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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.