Home / 153,405,065.36-211,697,592.68-83,790,427.78

Finding the Fourth Proportional to 153,405,065.36, 211,697,592.68 and 83,790,427.78

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Solution

The fourth proportional to 153,405,065.36, 211,697,592.68 and 83,790,427.78 is: 115,630,027.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,405,065.36 : 211,697,592.68 = 83,790,427.78 : x
  2. Step 2: Convert to fraction form
    153,405,065.36/211,697,592.68 = 83,790,427.78/x
  3. Step 3: Cross multiply
    153,405,065.36x = 211,697,592.68 × 83,790,427.78
  4. Step 4: Simplify right side
    153,405,065.36x = 17,738,231,850,653,398
  5. Step 5: Solve for x
    x = 17,738,231,850,653,398/153,405,065.36
  6. Step 6: Final answer
    x = 115,630,027.01

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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.