Home / 1,284,159,979.72-1,772,149,842.66-697,449,115.72

Finding the Fourth Proportional to 1,284,159,979.72, 1,772,149,842.66 and 697,449,115.72

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Solution

The fourth proportional to 1,284,159,979.72, 1,772,149,842.66 and 697,449,115.72 is: 962,484,706.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,159,979.72 : 1,772,149,842.66 = 697,449,115.72 : x
  2. Step 2: Convert to fraction form
    1,284,159,979.72/1,772,149,842.66 = 697,449,115.72/x
  3. Step 3: Cross multiply
    1,284,159,979.72x = 1,772,149,842.66 × 697,449,115.72
  4. Step 4: Simplify right side
    1,284,159,979.72x = 1,235,984,340,686,554,368
  5. Step 5: Solve for x
    x = 1,235,984,340,686,554,368/1,284,159,979.72
  6. Step 6: Final answer
    x = 962,484,706.12

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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.