Home / 427,247,995.60-640,871,993.40-283,640,827.60

Finding the Fourth Proportional to 427,247,995.60, 640,871,993.40 and 283,640,827.60

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Solution

The fourth proportional to 427,247,995.60, 640,871,993.40 and 283,640,827.60 is: 425,461,241.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,247,995.60 : 640,871,993.40 = 283,640,827.60 : x
  2. Step 2: Convert to fraction form
    427,247,995.60/640,871,993.40 = 283,640,827.60/x
  3. Step 3: Cross multiply
    427,247,995.60x = 640,871,993.40 × 283,640,827.60
  4. Step 4: Simplify right side
    427,247,995.60x = 181,777,462,593,637,760
  5. Step 5: Solve for x
    x = 181,777,462,593,637,760/427,247,995.60
  6. Step 6: Final answer
    x = 425,461,241.40

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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.