Home / 920,910,298,443.45-1,270,770,926,431.20-509,369,919,645.15

Finding the Fourth Proportional to 920,910,298,443.45, 1,270,770,926,431.20 and 509,369,919,645.15

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Solution

The fourth proportional to 920,910,298,443.45, 1,270,770,926,431.20 and 509,369,919,645.15 is: 702,883,316,407.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,910,298,443.45 : 1,270,770,926,431.20 = 509,369,919,645.15 : x
  2. Step 2: Convert to fraction form
    920,910,298,443.45/1,270,770,926,431.20 = 509,369,919,645.15/x
  3. Step 3: Cross multiply
    920,910,298,443.45x = 1,270,770,926,431.20 × 509,369,919,645.15
  4. Step 4: Simplify right side
    920,910,298,443.45x = 647,292,484,683,653,235,867,648
  5. Step 5: Solve for x
    x = 647,292,484,683,653,235,867,648/920,910,298,443.45
  6. Step 6: Final answer
    x = 702,883,316,407.39

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Double scale
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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.