Home / 30,325,006.80-45,393,031.80-21,821,950.80

Finding the Fourth Proportional to 30,325,006.80, 45,393,031.80 and 21,821,950.80

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Solution

The fourth proportional to 30,325,006.80, 45,393,031.80 and 21,821,950.80 is: 32,664,939.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,325,006.80 : 45,393,031.80 = 21,821,950.80 : x
  2. Step 2: Convert to fraction form
    30,325,006.80/45,393,031.80 = 21,821,950.80/x
  3. Step 3: Cross multiply
    30,325,006.80x = 45,393,031.80 × 21,821,950.80
  4. Step 4: Simplify right side
    30,325,006.80x = 990,564,506,602,435.38
  5. Step 5: Solve for x
    x = 990,564,506,602,435.38/30,325,006.80
  6. Step 6: Final answer
    x = 32,664,939.31

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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.