Home / 1,200,445,960.96-1,656,579,846-664,621,506.68

Finding the Fourth Proportional to 1,200,445,960.96, 1,656,579,846 and 664,621,506.68

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Solution

The fourth proportional to 1,200,445,960.96, 1,656,579,846 and 664,621,506.68 is: 917,157,980.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,445,960.96 : 1,656,579,846 = 664,621,506.68 : x
  2. Step 2: Convert to fraction form
    1,200,445,960.96/1,656,579,846 = 664,621,506.68/x
  3. Step 3: Cross multiply
    1,200,445,960.96x = 1,656,579,846 × 664,621,506.68
  4. Step 4: Simplify right side
    1,200,445,960.96x = 1,100,998,593,184,242,304
  5. Step 5: Solve for x
    x = 1,100,998,593,184,242,304/1,200,445,960.96
  6. Step 6: Final answer
    x = 917,157,980.44

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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.