Home / 20,142,830.58-30,223,176.39-10,555,929.78

Finding the Fourth Proportional to 20,142,830.58, 30,223,176.39 and 10,555,929.78

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Solution

The fourth proportional to 20,142,830.58, 30,223,176.39 and 10,555,929.78 is: 15,838,574.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,830.58 : 30,223,176.39 = 10,555,929.78 : x
  2. Step 2: Convert to fraction form
    20,142,830.58/30,223,176.39 = 10,555,929.78/x
  3. Step 3: Cross multiply
    20,142,830.58x = 30,223,176.39 × 10,555,929.78
  4. Step 4: Simplify right side
    20,142,830.58x = 319,033,727,701,393.88
  5. Step 5: Solve for x
    x = 319,033,727,701,393.88/20,142,830.58
  6. Step 6: Final answer
    x = 15,838,574.74

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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.