Home / 869,244,977.24-1,199,870,089.03-516,820,127.20

Finding the Fourth Proportional to 869,244,977.24, 1,199,870,089.03 and 516,820,127.20

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Solution

The fourth proportional to 869,244,977.24, 1,199,870,089.03 and 516,820,127.20 is: 713,397,291.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,244,977.24 : 1,199,870,089.03 = 516,820,127.20 : x
  2. Step 2: Convert to fraction form
    869,244,977.24/1,199,870,089.03 = 516,820,127.20/x
  3. Step 3: Cross multiply
    869,244,977.24x = 1,199,870,089.03 × 516,820,127.20
  4. Step 4: Simplify right side
    869,244,977.24x = 620,117,012,033,580,416
  5. Step 5: Solve for x
    x = 620,117,012,033,580,416/869,244,977.24
  6. Step 6: Final answer
    x = 713,397,291.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.