Home / 1,212,571,821.60-1,818,857,732.40-436,242,808.80

Finding the Fourth Proportional to 1,212,571,821.60, 1,818,857,732.40 and 436,242,808.80

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Solution

The fourth proportional to 1,212,571,821.60, 1,818,857,732.40 and 436,242,808.80 is: 654,364,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,571,821.60 : 1,818,857,732.40 = 436,242,808.80 : x
  2. Step 2: Convert to fraction form
    1,212,571,821.60/1,818,857,732.40 = 436,242,808.80/x
  3. Step 3: Cross multiply
    1,212,571,821.60x = 1,818,857,732.40 × 436,242,808.80
  4. Step 4: Simplify right side
    1,212,571,821.60x = 793,463,605,989,774,848
  5. Step 5: Solve for x
    x = 793,463,605,989,774,848/1,212,571,821.60
  6. Step 6: Final answer
    x = 654,364,213.20

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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.