Home / 803,242,109.80-1,199,454,119.81-655,981,800.34

Finding the Fourth Proportional to 803,242,109.80, 1,199,454,119.81 and 655,981,800.34

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Solution

The fourth proportional to 803,242,109.80, 1,199,454,119.81 and 655,981,800.34 is: 979,555,308.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,242,109.80 : 1,199,454,119.81 = 655,981,800.34 : x
  2. Step 2: Convert to fraction form
    803,242,109.80/1,199,454,119.81 = 655,981,800.34/x
  3. Step 3: Cross multiply
    803,242,109.80x = 1,199,454,119.81 × 655,981,800.34
  4. Step 4: Simplify right side
    803,242,109.80x = 786,820,072,938,193,920
  5. Step 5: Solve for x
    x = 786,820,072,938,193,920/803,242,109.80
  6. Step 6: Final answer
    x = 979,555,308.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.