Home / 77,339,121.60-106,725,544.80-42,531,704.40

Finding the Fourth Proportional to 77,339,121.60, 106,725,544.80 and 42,531,704.40

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Solution

The fourth proportional to 77,339,121.60, 106,725,544.80 and 42,531,704.40 is: 58,692,408.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,339,121.60 : 106,725,544.80 = 42,531,704.40 : x
  2. Step 2: Convert to fraction form
    77,339,121.60/106,725,544.80 = 42,531,704.40/x
  3. Step 3: Cross multiply
    77,339,121.60x = 106,725,544.80 × 42,531,704.40
  4. Step 4: Simplify right side
    77,339,121.60x = 4,539,219,323,362,557
  5. Step 5: Solve for x
    x = 4,539,219,323,362,557/77,339,121.60
  6. Step 6: Final answer
    x = 58,692,408.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.