Home / 412,201,516.10-618,302,274.15-139,572,283.10

Finding the Fourth Proportional to 412,201,516.10, 618,302,274.15 and 139,572,283.10

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Solution

The fourth proportional to 412,201,516.10, 618,302,274.15 and 139,572,283.10 is: 209,358,424.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,201,516.10 : 618,302,274.15 = 139,572,283.10 : x
  2. Step 2: Convert to fraction form
    412,201,516.10/618,302,274.15 = 139,572,283.10/x
  3. Step 3: Cross multiply
    412,201,516.10x = 618,302,274.15 × 139,572,283.10
  4. Step 4: Simplify right side
    412,201,516.10x = 86,297,860,049,037,600
  5. Step 5: Solve for x
    x = 86,297,860,049,037,600/412,201,516.10
  6. Step 6: Final answer
    x = 209,358,424.65

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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.