Home / 77,896,801.20-116,845,201.80-74,579,559.60

Finding the Fourth Proportional to 77,896,801.20, 116,845,201.80 and 74,579,559.60

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Solution

The fourth proportional to 77,896,801.20, 116,845,201.80 and 74,579,559.60 is: 111,869,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,896,801.20 : 116,845,201.80 = 74,579,559.60 : x
  2. Step 2: Convert to fraction form
    77,896,801.20/116,845,201.80 = 74,579,559.60/x
  3. Step 3: Cross multiply
    77,896,801.20x = 116,845,201.80 × 74,579,559.60
  4. Step 4: Simplify right side
    77,896,801.20x = 8,714,263,691,617,126
  5. Step 5: Solve for x
    x = 8,714,263,691,617,126/77,896,801.20
  6. Step 6: Final answer
    x = 111,869,339.40

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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.