Home / 99,845,751.81-137,784,494.40-55,793,112.64

Finding the Fourth Proportional to 99,845,751.81, 137,784,494.40 and 55,793,112.64

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Solution

The fourth proportional to 99,845,751.81, 137,784,494.40 and 55,793,112.64 is: 76,993,018.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,845,751.81 : 137,784,494.40 = 55,793,112.64 : x
  2. Step 2: Convert to fraction form
    99,845,751.81/137,784,494.40 = 55,793,112.64/x
  3. Step 3: Cross multiply
    99,845,751.81x = 137,784,494.40 × 55,793,112.64
  4. Step 4: Simplify right side
    99,845,751.81x = 7,687,425,816,104,650
  5. Step 5: Solve for x
    x = 7,687,425,816,104,650/99,845,751.81
  6. Step 6: Final answer
    x = 76,993,018.50

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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.