Home / 28,002,358-42,010,622.88-7,807,600

Finding the Fourth Proportional to 28,002,358, 42,010,622.88 and 7,807,600

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Solution

The fourth proportional to 28,002,358, 42,010,622.88 and 7,807,600 is: 11,713,375.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,002,358 : 42,010,622.88 = 7,807,600 : x
  2. Step 2: Convert to fraction form
    28,002,358/42,010,622.88 = 7,807,600/x
  3. Step 3: Cross multiply
    28,002,358x = 42,010,622.88 × 7,807,600
  4. Step 4: Simplify right side
    28,002,358x = 328,002,139,197,888
  5. Step 5: Solve for x
    x = 328,002,139,197,888/28,002,358
  6. Step 6: Final answer
    x = 11,713,375.68

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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.