Home / 215,078,134.60-322,020,005.10-209,106,166.60

Finding the Fourth Proportional to 215,078,134.60, 322,020,005.10 and 209,106,166.60

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Solution

The fourth proportional to 215,078,134.60, 322,020,005.10 and 209,106,166.60 is: 313,078,635.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,078,134.60 : 322,020,005.10 = 209,106,166.60 : x
  2. Step 2: Convert to fraction form
    215,078,134.60/322,020,005.10 = 209,106,166.60/x
  3. Step 3: Cross multiply
    215,078,134.60x = 322,020,005.10 × 209,106,166.60
  4. Step 4: Simplify right side
    215,078,134.60x = 67,336,368,834,973,456
  5. Step 5: Solve for x
    x = 67,336,368,834,973,456/215,078,134.60
  6. Step 6: Final answer
    x = 313,078,635.17

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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.