Home / 199,234,154.44-275,031,295.60-128,704,154.17

Finding the Fourth Proportional to 199,234,154.44, 275,031,295.60 and 128,704,154.17

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Solution

The fourth proportional to 199,234,154.44, 275,031,295.60 and 128,704,154.17 is: 177,668,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,234,154.44 : 275,031,295.60 = 128,704,154.17 : x
  2. Step 2: Convert to fraction form
    199,234,154.44/275,031,295.60 = 128,704,154.17/x
  3. Step 3: Cross multiply
    199,234,154.44x = 275,031,295.60 × 128,704,154.17
  4. Step 4: Simplify right side
    199,234,154.44x = 35,397,670,270,477,248
  5. Step 5: Solve for x
    x = 35,397,670,270,477,248/199,234,154.44
  6. Step 6: Final answer
    x = 177,668,685.22

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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.