Home / 209,953,036.10-315,087,018.15-107,664,421.70

Finding the Fourth Proportional to 209,953,036.10, 315,087,018.15 and 107,664,421.70

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Solution

The fourth proportional to 209,953,036.10, 315,087,018.15 and 107,664,421.70 is: 161,577,380.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,953,036.10 : 315,087,018.15 = 107,664,421.70 : x
  2. Step 2: Convert to fraction form
    209,953,036.10/315,087,018.15 = 107,664,421.70/x
  3. Step 3: Cross multiply
    209,953,036.10x = 315,087,018.15 × 107,664,421.70
  4. Step 4: Simplify right side
    209,953,036.10x = 33,923,661,594,297,152
  5. Step 5: Solve for x
    x = 33,923,661,594,297,152/209,953,036.10
  6. Step 6: Final answer
    x = 161,577,380.47

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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.