Home / 1,260,628,015.68-1,891,010,988.40-523,772,422.56

Finding the Fourth Proportional to 1,260,628,015.68, 1,891,010,988.40 and 523,772,422.56

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Solution

The fourth proportional to 1,260,628,015.68, 1,891,010,988.40 and 523,772,422.56 is: 785,687,287.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,628,015.68 : 1,891,010,988.40 = 523,772,422.56 : x
  2. Step 2: Convert to fraction form
    1,260,628,015.68/1,891,010,988.40 = 523,772,422.56/x
  3. Step 3: Cross multiply
    1,260,628,015.68x = 1,891,010,988.40 × 523,772,422.56
  4. Step 4: Simplify right side
    1,260,628,015.68x = 990,459,406,481,848,064
  5. Step 5: Solve for x
    x = 990,459,406,481,848,064/1,260,628,015.68
  6. Step 6: Final answer
    x = 785,687,287.73

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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.