Home / 30,579,976.68-42,200,355.64-16,828,940.80

Finding the Fourth Proportional to 30,579,976.68, 42,200,355.64 and 16,828,940.80

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Solution

The fourth proportional to 30,579,976.68, 42,200,355.64 and 16,828,940.80 is: 23,223,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579,976.68 : 42,200,355.64 = 16,828,940.80 : x
  2. Step 2: Convert to fraction form
    30,579,976.68/42,200,355.64 = 16,828,940.80/x
  3. Step 3: Cross multiply
    30,579,976.68x = 42,200,355.64 × 16,828,940.80
  4. Step 4: Simplify right side
    30,579,976.68x = 710,187,286,804,506.12
  5. Step 5: Solve for x
    x = 710,187,286,804,506.12/30,579,976.68
  6. Step 6: Final answer
    x = 23,223,931.60

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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.