Home / 798,513,216.89-1,196,699,179.12-621,464,154.21

Finding the Fourth Proportional to 798,513,216.89, 1,196,699,179.12 and 621,464,154.21

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Solution

The fourth proportional to 798,513,216.89, 1,196,699,179.12 and 621,464,154.21 is: 931,362,972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,513,216.89 : 1,196,699,179.12 = 621,464,154.21 : x
  2. Step 2: Convert to fraction form
    798,513,216.89/1,196,699,179.12 = 621,464,154.21/x
  3. Step 3: Cross multiply
    798,513,216.89x = 1,196,699,179.12 × 621,464,154.21
  4. Step 4: Simplify right side
    798,513,216.89x = 743,705,643,194,058,496
  5. Step 5: Solve for x
    x = 743,705,643,194,058,496/798,513,216.89
  6. Step 6: Final answer
    x = 931,362,972.42

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Double scale
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1.5x scale

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.