Home / 868,645,292.82-1,302,956,566.83-213,601,973.46

Finding the Fourth Proportional to 868,645,292.82, 1,302,956,566.83 and 213,601,973.46

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Solution

The fourth proportional to 868,645,292.82, 1,302,956,566.83 and 213,601,973.46 is: 320,400,163.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,645,292.82 : 1,302,956,566.83 = 213,601,973.46 : x
  2. Step 2: Convert to fraction form
    868,645,292.82/1,302,956,566.83 = 213,601,973.46/x
  3. Step 3: Cross multiply
    868,645,292.82x = 1,302,956,566.83 × 213,601,973.46
  4. Step 4: Simplify right side
    868,645,292.82x = 278,314,094,007,554,368
  5. Step 5: Solve for x
    x = 278,314,094,007,554,368/868,645,292.82
  6. Step 6: Final answer
    x = 320,400,163.69

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1.5x scale

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.