Home / 51,780,138.40-77,607,999.60-21,472,400.80

Finding the Fourth Proportional to 51,780,138.40, 77,607,999.60 and 21,472,400.80

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Solution

The fourth proportional to 51,780,138.40, 77,607,999.60 and 21,472,400.80 is: 32,182,804.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,780,138.40 : 77,607,999.60 = 21,472,400.80 : x
  2. Step 2: Convert to fraction form
    51,780,138.40/77,607,999.60 = 21,472,400.80/x
  3. Step 3: Cross multiply
    51,780,138.40x = 77,607,999.60 × 21,472,400.80
  4. Step 4: Simplify right side
    51,780,138.40x = 1,666,430,072,697,439.50
  5. Step 5: Solve for x
    x = 1,666,430,072,697,439.50/51,780,138.40
  6. Step 6: Final answer
    x = 32,182,804.53

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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.