Home / 767,919,811.91-1,059,721,795.94-415,488,069.74

Finding the Fourth Proportional to 767,919,811.91, 1,059,721,795.94 and 415,488,069.74

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Solution

The fourth proportional to 767,919,811.91, 1,059,721,795.94 and 415,488,069.74 is: 573,369,454.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,919,811.91 : 1,059,721,795.94 = 415,488,069.74 : x
  2. Step 2: Convert to fraction form
    767,919,811.91/1,059,721,795.94 = 415,488,069.74/x
  3. Step 3: Cross multiply
    767,919,811.91x = 1,059,721,795.94 × 415,488,069.74
  4. Step 4: Simplify right side
    767,919,811.91x = 440,301,763,457,088,640
  5. Step 5: Solve for x
    x = 440,301,763,457,088,640/767,919,811.91
  6. Step 6: Final answer
    x = 573,369,454.25

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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.