Home / 153,405,066.36-211,697,594.06-83,790,428.78

Finding the Fourth Proportional to 153,405,066.36, 211,697,594.06 and 83,790,428.78

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Solution

The fourth proportional to 153,405,066.36, 211,697,594.06 and 83,790,428.78 is: 115,630,028.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,405,066.36 : 211,697,594.06 = 83,790,428.78 : x
  2. Step 2: Convert to fraction form
    153,405,066.36/211,697,594.06 = 83,790,428.78/x
  3. Step 3: Cross multiply
    153,405,066.36x = 211,697,594.06 × 83,790,428.78
  4. Step 4: Simplify right side
    153,405,066.36x = 17,738,232,177,981,782
  5. Step 5: Solve for x
    x = 17,738,232,177,981,782/153,405,066.36
  6. Step 6: Final answer
    x = 115,630,028.39

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1.5x scale

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.