Home / 619,489,319.70-929,233,979.55-434,059,713.30

Finding the Fourth Proportional to 619,489,319.70, 929,233,979.55 and 434,059,713.30

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Solution

The fourth proportional to 619,489,319.70, 929,233,979.55 and 434,059,713.30 is: 651,089,569.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,489,319.70 : 929,233,979.55 = 434,059,713.30 : x
  2. Step 2: Convert to fraction form
    619,489,319.70/929,233,979.55 = 434,059,713.30/x
  3. Step 3: Cross multiply
    619,489,319.70x = 929,233,979.55 × 434,059,713.30
  4. Step 4: Simplify right side
    619,489,319.70x = 403,343,034,752,091,072
  5. Step 5: Solve for x
    x = 403,343,034,752,091,072/619,489,319.70
  6. Step 6: Final answer
    x = 651,089,569.95

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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.