Home / 744,963,546.72-1,117,408,174.82-278,590,683.72

Finding the Fourth Proportional to 744,963,546.72, 1,117,408,174.82 and 278,590,683.72

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Solution

The fourth proportional to 744,963,546.72, 1,117,408,174.82 and 278,590,683.72 is: 417,872,134.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,963,546.72 : 1,117,408,174.82 = 278,590,683.72 : x
  2. Step 2: Convert to fraction form
    744,963,546.72/1,117,408,174.82 = 278,590,683.72/x
  3. Step 3: Cross multiply
    744,963,546.72x = 1,117,408,174.82 × 278,590,683.72
  4. Step 4: Simplify right side
    744,963,546.72x = 311,299,507,417,421,120
  5. Step 5: Solve for x
    x = 311,299,507,417,421,120/744,963,546.72
  6. Step 6: Final answer
    x = 417,872,134.53

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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.