Home / 153,308,993.05-211,565,334.15-83,694,373.94

Finding the Fourth Proportional to 153,308,993.05, 211,565,334.15 and 83,694,373.94

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Solution

The fourth proportional to 153,308,993.05, 211,565,334.15 and 83,694,373.94 is: 115,497,648.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,308,993.05 : 211,565,334.15 = 83,694,373.94 : x
  2. Step 2: Convert to fraction form
    153,308,993.05/211,565,334.15 = 83,694,373.94/x
  3. Step 3: Cross multiply
    153,308,993.05x = 211,565,334.15 × 83,694,373.94
  4. Step 4: Simplify right side
    153,308,993.05x = 17,706,828,188,262,488
  5. Step 5: Solve for x
    x = 17,706,828,188,262,488/153,308,993.05
  6. Step 6: Final answer
    x = 115,497,648.48

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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.