Home / 49,729,811.40-74,602,688.64-20,980,181.76

Finding the Fourth Proportional to 49,729,811.40, 74,602,688.64 and 20,980,181.76

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Solution

The fourth proportional to 49,729,811.40, 74,602,688.64 and 20,980,181.76 is: 31,473,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,729,811.40 : 74,602,688.64 = 20,980,181.76 : x
  2. Step 2: Convert to fraction form
    49,729,811.40/74,602,688.64 = 20,980,181.76/x
  3. Step 3: Cross multiply
    49,729,811.40x = 74,602,688.64 × 20,980,181.76
  4. Step 4: Simplify right side
    49,729,811.40x = 1,565,177,967,451,887.25
  5. Step 5: Solve for x
    x = 1,565,177,967,451,887.25/49,729,811.40
  6. Step 6: Final answer
    x = 31,473,635.70

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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.