Home / 212,302,130.79-292,986,367.34-119,488,650.15

Finding the Fourth Proportional to 212,302,130.79, 292,986,367.34 and 119,488,650.15

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Solution

The fourth proportional to 212,302,130.79, 292,986,367.34 and 119,488,650.15 is: 164,899,642.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,302,130.79 : 292,986,367.34 = 119,488,650.15 : x
  2. Step 2: Convert to fraction form
    212,302,130.79/292,986,367.34 = 119,488,650.15/x
  3. Step 3: Cross multiply
    212,302,130.79x = 292,986,367.34 × 119,488,650.15
  4. Step 4: Simplify right side
    212,302,130.79x = 35,008,545,545,211,204
  5. Step 5: Solve for x
    x = 35,008,545,545,211,204/212,302,130.79
  6. Step 6: Final answer
    x = 164,899,642.86

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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.