Home / 30,579,970.32-42,200,346.83-16,828,934.44

Finding the Fourth Proportional to 30,579,970.32, 42,200,346.83 and 16,828,934.44

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Solution

The fourth proportional to 30,579,970.32, 42,200,346.83 and 16,828,934.44 is: 23,223,922.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579,970.32 : 42,200,346.83 = 16,828,934.44 : x
  2. Step 2: Convert to fraction form
    30,579,970.32/42,200,346.83 = 16,828,934.44/x
  3. Step 3: Cross multiply
    30,579,970.32x = 42,200,346.83 × 16,828,934.44
  4. Step 4: Simplify right side
    30,579,970.32x = 710,186,870,147,331.88
  5. Step 5: Solve for x
    x = 710,186,870,147,331.88/30,579,970.32
  6. Step 6: Final answer
    x = 23,223,922.81

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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.