Home / 668,916,693.12-922,896,778.60-386,556,266.92

Finding the Fourth Proportional to 668,916,693.12, 922,896,778.60 and 386,556,266.92

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Solution

The fourth proportional to 668,916,693.12, 922,896,778.60 and 386,556,266.92 is: 533,327,299.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,916,693.12 : 922,896,778.60 = 386,556,266.92 : x
  2. Step 2: Convert to fraction form
    668,916,693.12/922,896,778.60 = 386,556,266.92/x
  3. Step 3: Cross multiply
    668,916,693.12x = 922,896,778.60 × 386,556,266.92
  4. Step 4: Simplify right side
    668,916,693.12x = 356,751,533,488,109,760
  5. Step 5: Solve for x
    x = 356,751,533,488,109,760/668,916,693.12
  6. Step 6: Final answer
    x = 533,327,299.43

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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.