Home / 638,871,481.63-881,643,232.52-345,516,049.63

Finding the Fourth Proportional to 638,871,481.63, 881,643,232.52 and 345,516,049.63

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Solution

The fourth proportional to 638,871,481.63, 881,643,232.52 and 345,516,049.63 is: 476,812,466.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,871,481.63 : 881,643,232.52 = 345,516,049.63 : x
  2. Step 2: Convert to fraction form
    638,871,481.63/881,643,232.52 = 345,516,049.63/x
  3. Step 3: Cross multiply
    638,871,481.63x = 881,643,232.52 × 345,516,049.63
  4. Step 4: Simplify right side
    638,871,481.63x = 304,621,886,883,333,952
  5. Step 5: Solve for x
    x = 304,621,886,883,333,952/638,871,481.63
  6. Step 6: Final answer
    x = 476,812,466.42

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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.