Home / 290,704,628.03-436,121,756.62-83,426,880.69

Finding the Fourth Proportional to 290,704,628.03, 436,121,756.62 and 83,426,880.69

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Solution

The fourth proportional to 290,704,628.03, 436,121,756.62 and 83,426,880.69 is: 125,158,921.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,704,628.03 : 436,121,756.62 = 83,426,880.69 : x
  2. Step 2: Convert to fraction form
    290,704,628.03/436,121,756.62 = 83,426,880.69/x
  3. Step 3: Cross multiply
    290,704,628.03x = 436,121,756.62 × 83,426,880.69
  4. Step 4: Simplify right side
    290,704,628.03x = 36,384,277,755,641,392
  5. Step 5: Solve for x
    x = 36,384,277,755,641,392/290,704,628.03
  6. Step 6: Final answer
    x = 125,158,921.63

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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.