Home / 153,232,971.10-211,465,967.26-83,622,835.90

Finding the Fourth Proportional to 153,232,971.10, 211,465,967.26 and 83,622,835.90

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Solution

The fourth proportional to 153,232,971.10, 211,465,967.26 and 83,622,835.90 is: 115,401,951.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,232,971.10 : 211,465,967.26 = 83,622,835.90 : x
  2. Step 2: Convert to fraction form
    153,232,971.10/211,465,967.26 = 83,622,835.90/x
  3. Step 3: Cross multiply
    153,232,971.10x = 211,465,967.26 × 83,622,835.90
  4. Step 4: Simplify right side
    153,232,971.10x = 17,683,383,878,617,754
  5. Step 5: Solve for x
    x = 17,683,383,878,617,754/153,232,971.10
  6. Step 6: Final answer
    x = 115,401,951.37

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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.