Home / 153,382,751.15-211,673,419.39-90,712,571.22

Finding the Fourth Proportional to 153,382,751.15, 211,673,419.39 and 90,712,571.22

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Solution

The fourth proportional to 153,382,751.15, 211,673,419.39 and 90,712,571.22 is: 125,186,437.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,382,751.15 : 211,673,419.39 = 90,712,571.22 : x
  2. Step 2: Convert to fraction form
    153,382,751.15/211,673,419.39 = 90,712,571.22/x
  3. Step 3: Cross multiply
    153,382,751.15x = 211,673,419.39 × 90,712,571.22
  4. Step 4: Simplify right side
    153,382,751.15x = 19,201,440,131,909,696
  5. Step 5: Solve for x
    x = 19,201,440,131,909,696/153,382,751.15
  6. Step 6: Final answer
    x = 125,186,437.12

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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.