Home / 756,660,259.60-1,134,990,389.40-211,400,918.80

Finding the Fourth Proportional to 756,660,259.60, 1,134,990,389.40 and 211,400,918.80

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Solution

The fourth proportional to 756,660,259.60, 1,134,990,389.40 and 211,400,918.80 is: 317,101,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,660,259.60 : 1,134,990,389.40 = 211,400,918.80 : x
  2. Step 2: Convert to fraction form
    756,660,259.60/1,134,990,389.40 = 211,400,918.80/x
  3. Step 3: Cross multiply
    756,660,259.60x = 1,134,990,389.40 × 211,400,918.80
  4. Step 4: Simplify right side
    756,660,259.60x = 239,938,011,148,329,824
  5. Step 5: Solve for x
    x = 239,938,011,148,329,824/756,660,259.60
  6. Step 6: Final answer
    x = 317,101,378.20

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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.