Home / 209,953,029.60-315,087,008.40-107,664,415.20

Finding the Fourth Proportional to 209,953,029.60, 315,087,008.40 and 107,664,415.20

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Solution

The fourth proportional to 209,953,029.60, 315,087,008.40 and 107,664,415.20 is: 161,577,370.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,953,029.60 : 315,087,008.40 = 107,664,415.20 : x
  2. Step 2: Convert to fraction form
    209,953,029.60/315,087,008.40 = 107,664,415.20/x
  3. Step 3: Cross multiply
    209,953,029.60x = 315,087,008.40 × 107,664,415.20
  4. Step 4: Simplify right side
    209,953,029.60x = 33,923,658,496,503,488
  5. Step 5: Solve for x
    x = 33,923,658,496,503,488/209,953,029.60
  6. Step 6: Final answer
    x = 161,577,370.72

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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.