Home / 1,216,721,346.53-1,679,075,904.56-659,804,245.97

Finding the Fourth Proportional to 1,216,721,346.53, 1,679,075,904.56 and 659,804,245.97

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Solution

The fourth proportional to 1,216,721,346.53, 1,679,075,904.56 and 659,804,245.97 is: 910,530,101.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,721,346.53 : 1,679,075,904.56 = 659,804,245.97 : x
  2. Step 2: Convert to fraction form
    1,216,721,346.53/1,679,075,904.56 = 659,804,245.97/x
  3. Step 3: Cross multiply
    1,216,721,346.53x = 1,679,075,904.56 × 659,804,245.97
  4. Step 4: Simplify right side
    1,216,721,346.53x = 1,107,861,411,122,912,128
  5. Step 5: Solve for x
    x = 1,107,861,411,122,912,128/1,216,721,346.53
  6. Step 6: Final answer
    x = 910,530,101.48

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Double scale
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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.