Home / 638,871,496.64-881,643,253.28-345,516,064.64

Finding the Fourth Proportional to 638,871,496.64, 881,643,253.28 and 345,516,064.64

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Solution

The fourth proportional to 638,871,496.64, 881,643,253.28 and 345,516,064.64 is: 476,812,487.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,871,496.64 : 881,643,253.28 = 345,516,064.64 : x
  2. Step 2: Convert to fraction form
    638,871,496.64/881,643,253.28 = 345,516,064.64/x
  3. Step 3: Cross multiply
    638,871,496.64x = 881,643,253.28 × 345,516,064.64
  4. Step 4: Simplify right side
    638,871,496.64x = 304,621,907,289,712,320
  5. Step 5: Solve for x
    x = 304,621,907,289,712,320/638,871,496.64
  6. Step 6: Final answer
    x = 476,812,487.16

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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.