Home / 157,915,794.08-217,907,018.64-87,340,189.32

Finding the Fourth Proportional to 157,915,794.08, 217,907,018.64 and 87,340,189.32

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Solution

The fourth proportional to 157,915,794.08, 217,907,018.64 and 87,340,189.32 is: 120,520,182.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,915,794.08 : 217,907,018.64 = 87,340,189.32 : x
  2. Step 2: Convert to fraction form
    157,915,794.08/217,907,018.64 = 87,340,189.32/x
  3. Step 3: Cross multiply
    157,915,794.08x = 217,907,018.64 × 87,340,189.32
  4. Step 4: Simplify right side
    157,915,794.08x = 19,032,040,262,174,368
  5. Step 5: Solve for x
    x = 19,032,040,262,174,368/157,915,794.08
  6. Step 6: Final answer
    x = 120,520,182.12

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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.