Home / 299,019,789.40-448,613,664.90-145,670,848.60

Finding the Fourth Proportional to 299,019,789.40, 448,613,664.90 and 145,670,848.60

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Solution

The fourth proportional to 299,019,789.40, 448,613,664.90 and 145,670,848.60 is: 218,547,185.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,019,789.40 : 448,613,664.90 = 145,670,848.60 : x
  2. Step 2: Convert to fraction form
    299,019,789.40/448,613,664.90 = 145,670,848.60/x
  3. Step 3: Cross multiply
    299,019,789.40x = 448,613,664.90 × 145,670,848.60
  4. Step 4: Simplify right side
    299,019,789.40x = 65,349,933,259,539,024
  5. Step 5: Solve for x
    x = 65,349,933,259,539,024/299,019,789.40
  6. Step 6: Final answer
    x = 218,547,185.09

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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.