Home / 1,389,331,281.30-2,083,996,921.95-571,171,665.30

Finding the Fourth Proportional to 1,389,331,281.30, 2,083,996,921.95 and 571,171,665.30

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Solution

The fourth proportional to 1,389,331,281.30, 2,083,996,921.95 and 571,171,665.30 is: 856,757,497.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,331,281.30 : 2,083,996,921.95 = 571,171,665.30 : x
  2. Step 2: Convert to fraction form
    1,389,331,281.30/2,083,996,921.95 = 571,171,665.30/x
  3. Step 3: Cross multiply
    1,389,331,281.30x = 2,083,996,921.95 × 571,171,665.30
  4. Step 4: Simplify right side
    1,389,331,281.30x = 1,190,319,992,390,255,616
  5. Step 5: Solve for x
    x = 1,190,319,992,390,255,616/1,389,331,281.30
  6. Step 6: Final answer
    x = 856,757,497.95

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.