Home / 768,041,399.91-1,059,899,921.64-415,617,352.34

Finding the Fourth Proportional to 768,041,399.91, 1,059,899,921.64 and 415,617,352.34

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Solution

The fourth proportional to 768,041,399.91, 1,059,899,921.64 and 415,617,352.34 is: 573,553,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,041,399.91 : 1,059,899,921.64 = 415,617,352.34 : x
  2. Step 2: Convert to fraction form
    768,041,399.91/1,059,899,921.64 = 415,617,352.34/x
  3. Step 3: Cross multiply
    768,041,399.91x = 1,059,899,921.64 × 415,617,352.34
  4. Step 4: Simplify right side
    768,041,399.91x = 440,512,799,177,390,208
  5. Step 5: Solve for x
    x = 440,512,799,177,390,208/768,041,399.91
  6. Step 6: Final answer
    x = 573,553,455.88

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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.