Home / 346,938,195.72-478,789,728.66-207,682,020.48

Finding the Fourth Proportional to 346,938,195.72, 478,789,728.66 and 207,682,020.48

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Solution

The fourth proportional to 346,938,195.72, 478,789,728.66 and 207,682,020.48 is: 286,610,178.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,938,195.72 : 478,789,728.66 = 207,682,020.48 : x
  2. Step 2: Convert to fraction form
    346,938,195.72/478,789,728.66 = 207,682,020.48/x
  3. Step 3: Cross multiply
    346,938,195.72x = 478,789,728.66 × 207,682,020.48
  4. Step 4: Simplify right side
    346,938,195.72x = 99,436,018,233,179,760
  5. Step 5: Solve for x
    x = 99,436,018,233,179,760/346,938,195.72
  6. Step 6: Final answer
    x = 286,610,178.58

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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.