Home / 78,104,721.70-107,784,513.60-43,297,323.94

Finding the Fourth Proportional to 78,104,721.70, 107,784,513.60 and 43,297,323.94

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Solution

The fourth proportional to 78,104,721.70, 107,784,513.60 and 43,297,323.94 is: 59,750,305.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,104,721.70 : 107,784,513.60 = 43,297,323.94 : x
  2. Step 2: Convert to fraction form
    78,104,721.70/107,784,513.60 = 43,297,323.94/x
  3. Step 3: Cross multiply
    78,104,721.70x = 107,784,513.60 × 43,297,323.94
  4. Step 4: Simplify right side
    78,104,721.70x = 4,666,781,001,054,535
  5. Step 5: Solve for x
    x = 4,666,781,001,054,535/78,104,721.70
  6. Step 6: Final answer
    x = 59,750,305.74

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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.