Home / 153,230,838.56-211,463,043.92-83,620,704.80

Finding the Fourth Proportional to 153,230,838.56, 211,463,043.92 and 83,620,704.80

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Solution

The fourth proportional to 153,230,838.56, 211,463,043.92 and 83,620,704.80 is: 115,399,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,230,838.56 : 211,463,043.92 = 83,620,704.80 : x
  2. Step 2: Convert to fraction form
    153,230,838.56/211,463,043.92 = 83,620,704.80/x
  3. Step 3: Cross multiply
    153,230,838.56x = 211,463,043.92 × 83,620,704.80
  4. Step 4: Simplify right side
    153,230,838.56x = 17,682,688,771,743,754
  5. Step 5: Solve for x
    x = 17,682,688,771,743,754/153,230,838.56
  6. Step 6: Final answer
    x = 115,399,021.10

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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.