Home / 1,327,105,269.20-1,990,657,903.80-406,974,299.60

Finding the Fourth Proportional to 1,327,105,269.20, 1,990,657,903.80 and 406,974,299.60

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Solution

The fourth proportional to 1,327,105,269.20, 1,990,657,903.80 and 406,974,299.60 is: 610,461,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,105,269.20 : 1,990,657,903.80 = 406,974,299.60 : x
  2. Step 2: Convert to fraction form
    1,327,105,269.20/1,990,657,903.80 = 406,974,299.60/x
  3. Step 3: Cross multiply
    1,327,105,269.20x = 1,990,657,903.80 × 406,974,299.60
  4. Step 4: Simplify right side
    1,327,105,269.20x = 810,146,606,142,209,152
  5. Step 5: Solve for x
    x = 810,146,606,142,209,152/1,327,105,269.20
  6. Step 6: Final answer
    x = 610,461,449.40

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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.