Home / 318,482,871,342.10-439,506,345,643.54-171,995,318,654.11

Finding the Fourth Proportional to 318,482,871,342.10, 439,506,345,643.54 and 171,995,318,654.11

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Solution

The fourth proportional to 318,482,871,342.10, 439,506,345,643.54 and 171,995,318,654.11 is: 237,353,530,665.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,482,871,342.10 : 439,506,345,643.54 = 171,995,318,654.11 : x
  2. Step 2: Convert to fraction form
    318,482,871,342.10/439,506,345,643.54 = 171,995,318,654.11/x
  3. Step 3: Cross multiply
    318,482,871,342.10x = 439,506,345,643.54 × 171,995,318,654.11
  4. Step 4: Simplify right side
    318,482,871,342.10x = 75,593,033,969,464,059,625,472
  5. Step 5: Solve for x
    x = 75,593,033,969,464,059,625,472/318,482,871,342.10
  6. Step 6: Final answer
    x = 237,353,530,665.28

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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.