Home / 768,041,398.91-1,059,899,920.26-415,617,351.34

Finding the Fourth Proportional to 768,041,398.91, 1,059,899,920.26 and 415,617,351.34

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Solution

The fourth proportional to 768,041,398.91, 1,059,899,920.26 and 415,617,351.34 is: 573,553,454.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,041,398.91 : 1,059,899,920.26 = 415,617,351.34 : x
  2. Step 2: Convert to fraction form
    768,041,398.91/1,059,899,920.26 = 415,617,351.34/x
  3. Step 3: Cross multiply
    768,041,398.91x = 1,059,899,920.26 × 415,617,351.34
  4. Step 4: Simplify right side
    768,041,398.91x = 440,512,797,543,938,368
  5. Step 5: Solve for x
    x = 440,512,797,543,938,368/768,041,398.91
  6. Step 6: Final answer
    x = 573,553,454.50

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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.