Home / 767,919,856.70-1,059,721,857.74-415,488,114.53

Finding the Fourth Proportional to 767,919,856.70, 1,059,721,857.74 and 415,488,114.53

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Solution

The fourth proportional to 767,919,856.70, 1,059,721,857.74 and 415,488,114.53 is: 573,369,516.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,919,856.70 : 1,059,721,857.74 = 415,488,114.53 : x
  2. Step 2: Convert to fraction form
    767,919,856.70/1,059,721,857.74 = 415,488,114.53/x
  3. Step 3: Cross multiply
    767,919,856.70x = 1,059,721,857.74 × 415,488,114.53
  4. Step 4: Simplify right side
    767,919,856.70x = 440,301,836,604,291,200
  5. Step 5: Solve for x
    x = 440,301,836,604,291,200/767,919,856.70
  6. Step 6: Final answer
    x = 573,369,516.06

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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.