Home / 193,538,334.30-290,307,501.45-145,762,590.30

Finding the Fourth Proportional to 193,538,334.30, 290,307,501.45 and 145,762,590.30

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Solution

The fourth proportional to 193,538,334.30, 290,307,501.45 and 145,762,590.30 is: 218,643,885.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,538,334.30 : 290,307,501.45 = 145,762,590.30 : x
  2. Step 2: Convert to fraction form
    193,538,334.30/290,307,501.45 = 145,762,590.30/x
  3. Step 3: Cross multiply
    193,538,334.30x = 290,307,501.45 × 145,762,590.30
  4. Step 4: Simplify right side
    193,538,334.30x = 42,315,973,394,873,008
  5. Step 5: Solve for x
    x = 42,315,973,394,873,008/193,538,334.30
  6. Step 6: Final answer
    x = 218,643,885.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.