Home / 318,482,871,337.72-439,506,345,637.52-171,995,318,649.75

Finding the Fourth Proportional to 318,482,871,337.72, 439,506,345,637.52 and 171,995,318,649.75

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Solution

The fourth proportional to 318,482,871,337.72, 439,506,345,637.52 and 171,995,318,649.75 is: 237,353,530,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,482,871,337.72 : 439,506,345,637.52 = 171,995,318,649.75 : x
  2. Step 2: Convert to fraction form
    318,482,871,337.72/439,506,345,637.52 = 171,995,318,649.75/x
  3. Step 3: Cross multiply
    318,482,871,337.72x = 439,506,345,637.52 × 171,995,318,649.75
  4. Step 4: Simplify right side
    318,482,871,337.72x = 75,593,033,966,512,410,460,160
  5. Step 5: Solve for x
    x = 75,593,033,966,512,410,460,160/318,482,871,337.72
  6. Step 6: Final answer
    x = 237,353,530,659.28

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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.