Home / 153,230,131.80-211,462,068.16-83,619,999.46

Finding the Fourth Proportional to 153,230,131.80, 211,462,068.16 and 83,619,999.46

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Solution

The fourth proportional to 153,230,131.80, 211,462,068.16 and 83,619,999.46 is: 115,398,047.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,230,131.80 : 211,462,068.16 = 83,619,999.46 : x
  2. Step 2: Convert to fraction form
    153,230,131.80/211,462,068.16 = 83,619,999.46/x
  3. Step 3: Cross multiply
    153,230,131.80x = 211,462,068.16 × 83,619,999.46
  4. Step 4: Simplify right side
    153,230,131.80x = 17,682,458,025,349,682
  5. Step 5: Solve for x
    x = 17,682,458,025,349,682/153,230,131.80
  6. Step 6: Final answer
    x = 115,398,047.48

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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.