Home / 727,585,900.80-1,091,388,182.40-242,911,708.80

Finding the Fourth Proportional to 727,585,900.80, 1,091,388,182.40 and 242,911,708.80

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Solution

The fourth proportional to 727,585,900.80, 1,091,388,182.40 and 242,911,708.80 is: 364,370,678.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,585,900.80 : 1,091,388,182.40 = 242,911,708.80 : x
  2. Step 2: Convert to fraction form
    727,585,900.80/1,091,388,182.40 = 242,911,708.80/x
  3. Step 3: Cross multiply
    727,585,900.80x = 1,091,388,182.40 × 242,911,708.80
  4. Step 4: Simplify right side
    727,585,900.80x = 265,110,968,350,910,112
  5. Step 5: Solve for x
    x = 265,110,968,350,910,112/727,585,900.80
  6. Step 6: Final answer
    x = 364,370,678.51

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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.