Home / 153,382,785.80-211,673,467.94-90,712,605.86

Finding the Fourth Proportional to 153,382,785.80, 211,673,467.94 and 90,712,605.86

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Solution

The fourth proportional to 153,382,785.80, 211,673,467.94 and 90,712,605.86 is: 125,186,485.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,382,785.80 : 211,673,467.94 = 90,712,605.86 : x
  2. Step 2: Convert to fraction form
    153,382,785.80/211,673,467.94 = 90,712,605.86/x
  3. Step 3: Cross multiply
    153,382,785.80x = 211,673,467.94 × 90,712,605.86
  4. Step 4: Simplify right side
    153,382,785.80x = 19,201,451,868,260,564
  5. Step 5: Solve for x
    x = 19,201,451,868,260,564/153,382,785.80
  6. Step 6: Final answer
    x = 125,186,485.35

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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.