Home / 888,684,688.14-1,227,209,233.47-665,278,515.65

Finding the Fourth Proportional to 888,684,688.14, 1,227,209,233.47 and 665,278,515.65

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Solution

The fourth proportional to 888,684,688.14, 1,227,209,233.47 and 665,278,515.65 is: 918,701,478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,684,688.14 : 1,227,209,233.47 = 665,278,515.65 : x
  2. Step 2: Convert to fraction form
    888,684,688.14/1,227,209,233.47 = 665,278,515.65/x
  3. Step 3: Cross multiply
    888,684,688.14x = 1,227,209,233.47 × 665,278,515.65
  4. Step 4: Simplify right side
    888,684,688.14x = 816,435,937,228,759,808
  5. Step 5: Solve for x
    x = 816,435,937,228,759,808/888,684,688.14
  6. Step 6: Final answer
    x = 918,701,478.85

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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.