Home / 720,751,341.47-1,081,017,775.90-196,161,322.55

Finding the Fourth Proportional to 720,751,341.47, 1,081,017,775.90 and 196,161,322.55

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Solution

The fourth proportional to 720,751,341.47, 1,081,017,775.90 and 196,161,322.55 is: 294,212,253.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,751,341.47 : 1,081,017,775.90 = 196,161,322.55 : x
  2. Step 2: Convert to fraction form
    720,751,341.47/1,081,017,775.90 = 196,161,322.55/x
  3. Step 3: Cross multiply
    720,751,341.47x = 1,081,017,775.90 × 196,161,322.55
  4. Step 4: Simplify right side
    720,751,341.47x = 212,053,876,619,742,656
  5. Step 5: Solve for x
    x = 212,053,876,619,742,656/720,751,341.47
  6. Step 6: Final answer
    x = 294,212,253.82

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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.