Home / 646,824,820.80-970,363,202.40-186,777,998.40

Finding the Fourth Proportional to 646,824,820.80, 970,363,202.40 and 186,777,998.40

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Solution

The fourth proportional to 646,824,820.80, 970,363,202.40 and 186,777,998.40 is: 280,203,373.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,824,820.80 : 970,363,202.40 = 186,777,998.40 : x
  2. Step 2: Convert to fraction form
    646,824,820.80/970,363,202.40 = 186,777,998.40/x
  3. Step 3: Cross multiply
    646,824,820.80x = 970,363,202.40 × 186,777,998.40
  4. Step 4: Simplify right side
    646,824,820.80x = 181,242,496,665,286,080
  5. Step 5: Solve for x
    x = 181,242,496,665,286,080/646,824,820.80
  6. Step 6: Final answer
    x = 280,203,373.21

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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.