Home / 1,018,672,972.80-1,528,009,459.20-291,661,684.80

Finding the Fourth Proportional to 1,018,672,972.80, 1,528,009,459.20 and 291,661,684.80

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Solution

The fourth proportional to 1,018,672,972.80, 1,528,009,459.20 and 291,661,684.80 is: 437,492,527.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,672,972.80 : 1,528,009,459.20 = 291,661,684.80 : x
  2. Step 2: Convert to fraction form
    1,018,672,972.80/1,528,009,459.20 = 291,661,684.80/x
  3. Step 3: Cross multiply
    1,018,672,972.80x = 1,528,009,459.20 × 291,661,684.80
  4. Step 4: Simplify right side
    1,018,672,972.80x = 445,661,813,260,608,896
  5. Step 5: Solve for x
    x = 445,661,813,260,608,896/1,018,672,972.80
  6. Step 6: Final answer
    x = 437,492,527.20

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Double scale
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Similar ratio
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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.