Home / 256,990,835,331.90-385,241,364,985.05-200,299,260,368.70

Finding the Fourth Proportional to 256,990,835,331.90, 385,241,364,985.05 and 200,299,260,368.70

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Solution

The fourth proportional to 256,990,835,331.90, 385,241,364,985.05 and 200,299,260,368.70 is: 300,258,024,260.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,990,835,331.90 : 385,241,364,985.05 = 200,299,260,368.70 : x
  2. Step 2: Convert to fraction form
    256,990,835,331.90/385,241,364,985.05 = 200,299,260,368.70/x
  3. Step 3: Cross multiply
    256,990,835,331.90x = 385,241,364,985.05 × 200,299,260,368.70
  4. Step 4: Simplify right side
    256,990,835,331.90x = 77,163,560,469,933,913,538,560
  5. Step 5: Solve for x
    x = 77,163,560,469,933,913,538,560/256,990,835,331.90
  6. Step 6: Final answer
    x = 300,258,024,260.98

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1.5x scale

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.