Home / 403,603,155.09-556,972,332.71-217,964,152.89

Finding the Fourth Proportional to 403,603,155.09, 556,972,332.71 and 217,964,152.89

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Solution

The fourth proportional to 403,603,155.09, 556,972,332.71 and 217,964,152.89 is: 300,790,519.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,603,155.09 : 556,972,332.71 = 217,964,152.89 : x
  2. Step 2: Convert to fraction form
    403,603,155.09/556,972,332.71 = 217,964,152.89/x
  3. Step 3: Cross multiply
    403,603,155.09x = 556,972,332.71 × 217,964,152.89
  4. Step 4: Simplify right side
    403,603,155.09x = 121,400,002,681,212,576
  5. Step 5: Solve for x
    x = 121,400,002,681,212,576/403,603,155.09
  6. Step 6: Final answer
    x = 300,790,519.47

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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.