Home / 1,409,080,578.40-2,113,620,867.60-1,318,381,314.40

Finding the Fourth Proportional to 1,409,080,578.40, 2,113,620,867.60 and 1,318,381,314.40

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Solution

The fourth proportional to 1,409,080,578.40, 2,113,620,867.60 and 1,318,381,314.40 is: 1,977,571,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,080,578.40 : 2,113,620,867.60 = 1,318,381,314.40 : x
  2. Step 2: Convert to fraction form
    1,409,080,578.40/2,113,620,867.60 = 1,318,381,314.40/x
  3. Step 3: Cross multiply
    1,409,080,578.40x = 2,113,620,867.60 × 1,318,381,314.40
  4. Step 4: Simplify right side
    1,409,080,578.40x = 2,786,558,257,569,756,672
  5. Step 5: Solve for x
    x = 2,786,558,257,569,756,672/1,409,080,578.40
  6. Step 6: Final answer
    x = 1,977,571,971.60

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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.