Home / 128,014,700.40-192,106,031.40-73,427,180.40

Finding the Fourth Proportional to 128,014,700.40, 192,106,031.40 and 73,427,180.40

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Solution

The fourth proportional to 128,014,700.40, 192,106,031.40 and 73,427,180.40 is: 110,188,940.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,014,700.40 : 192,106,031.40 = 73,427,180.40 : x
  2. Step 2: Convert to fraction form
    128,014,700.40/192,106,031.40 = 73,427,180.40/x
  3. Step 3: Cross multiply
    128,014,700.40x = 192,106,031.40 × 73,427,180.40
  4. Step 4: Simplify right side
    128,014,700.40x = 14,105,804,223,535,866
  5. Step 5: Solve for x
    x = 14,105,804,223,535,866/128,014,700.40
  6. Step 6: Final answer
    x = 110,188,940.64

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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.