Home / 980,189,681.80-1,470,284,522.70-758,259,920.20

Finding the Fourth Proportional to 980,189,681.80, 1,470,284,522.70 and 758,259,920.20

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Solution

The fourth proportional to 980,189,681.80, 1,470,284,522.70 and 758,259,920.20 is: 1,137,389,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,189,681.80 : 1,470,284,522.70 = 758,259,920.20 : x
  2. Step 2: Convert to fraction form
    980,189,681.80/1,470,284,522.70 = 758,259,920.20/x
  3. Step 3: Cross multiply
    980,189,681.80x = 1,470,284,522.70 × 758,259,920.20
  4. Step 4: Simplify right side
    980,189,681.80x = 1,114,857,824,853,797,248
  5. Step 5: Solve for x
    x = 1,114,857,824,853,797,248/980,189,681.80
  6. Step 6: Final answer
    x = 1,137,389,880.30

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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.