Home / 112,623,898.50-155,420,979.93-61,115,674.50

Finding the Fourth Proportional to 112,623,898.50, 155,420,979.93 and 61,115,674.50

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Solution

The fourth proportional to 112,623,898.50, 155,420,979.93 and 61,115,674.50 is: 84,339,630.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,623,898.50 : 155,420,979.93 = 61,115,674.50 : x
  2. Step 2: Convert to fraction form
    112,623,898.50/155,420,979.93 = 61,115,674.50/x
  3. Step 3: Cross multiply
    112,623,898.50x = 155,420,979.93 × 61,115,674.50
  4. Step 4: Simplify right side
    112,623,898.50x = 9,498,658,019,872,914
  5. Step 5: Solve for x
    x = 9,498,658,019,872,914/112,623,898.50
  6. Step 6: Final answer
    x = 84,339,630.81

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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.