Home / 412,201,522.60-618,302,283.90-139,572,289.60

Finding the Fourth Proportional to 412,201,522.60, 618,302,283.90 and 139,572,289.60

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Solution

The fourth proportional to 412,201,522.60, 618,302,283.90 and 139,572,289.60 is: 209,358,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,201,522.60 : 618,302,283.90 = 139,572,289.60 : x
  2. Step 2: Convert to fraction form
    412,201,522.60/618,302,283.90 = 139,572,289.60/x
  3. Step 3: Cross multiply
    412,201,522.60x = 618,302,283.90 × 139,572,289.60
  4. Step 4: Simplify right side
    412,201,522.60x = 86,297,865,428,832,208
  5. Step 5: Solve for x
    x = 86,297,865,428,832,208/412,201,522.60
  6. Step 6: Final answer
    x = 209,358,434.40

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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.