Home / 783,504,493.80-1,176,161,867.10-420,707,437.80

Finding the Fourth Proportional to 783,504,493.80, 1,176,161,867.10 and 420,707,437.80

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Solution

The fourth proportional to 783,504,493.80, 1,176,161,867.10 and 420,707,437.80 is: 631,547,169.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,504,493.80 : 1,176,161,867.10 = 420,707,437.80 : x
  2. Step 2: Convert to fraction form
    783,504,493.80/1,176,161,867.10 = 420,707,437.80/x
  3. Step 3: Cross multiply
    783,504,493.80x = 1,176,161,867.10 × 420,707,437.80
  4. Step 4: Simplify right side
    783,504,493.80x = 494,820,045,545,705,088
  5. Step 5: Solve for x
    x = 494,820,045,545,705,088/783,504,493.80
  6. Step 6: Final answer
    x = 631,547,169.75

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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.