Home / 13,173,913.50-18,180,000.64-7,144,601.50

Finding the Fourth Proportional to 13,173,913.50, 18,180,000.64 and 7,144,601.50

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Solution

The fourth proportional to 13,173,913.50, 18,180,000.64 and 7,144,601.50 is: 9,859,550.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173,913.50 : 18,180,000.64 = 7,144,601.50 : x
  2. Step 2: Convert to fraction form
    13,173,913.50/18,180,000.64 = 7,144,601.50/x
  3. Step 3: Cross multiply
    13,173,913.50x = 18,180,000.64 × 7,144,601.50
  4. Step 4: Simplify right side
    13,173,913.50x = 129,888,859,842,544.97
  5. Step 5: Solve for x
    x = 129,888,859,842,544.97/13,173,913.50
  6. Step 6: Final answer
    x = 9,859,550.08

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1.5x scale

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.