Home / 767,919,812.91-1,059,721,797.31-415,488,070.74

Finding the Fourth Proportional to 767,919,812.91, 1,059,721,797.31 and 415,488,070.74

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Solution

The fourth proportional to 767,919,812.91, 1,059,721,797.31 and 415,488,070.74 is: 573,369,455.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,919,812.91 : 1,059,721,797.31 = 415,488,070.74 : x
  2. Step 2: Convert to fraction form
    767,919,812.91/1,059,721,797.31 = 415,488,070.74/x
  3. Step 3: Cross multiply
    767,919,812.91x = 1,059,721,797.31 × 415,488,070.74
  4. Step 4: Simplify right side
    767,919,812.91x = 440,301,765,085,457,216
  5. Step 5: Solve for x
    x = 440,301,765,085,457,216/767,919,812.91
  6. Step 6: Final answer
    x = 573,369,455.62

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1.5x scale

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.