Home / 442,868,742.90-664,303,114.35-258,446,906.10

Finding the Fourth Proportional to 442,868,742.90, 664,303,114.35 and 258,446,906.10

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Solution

The fourth proportional to 442,868,742.90, 664,303,114.35 and 258,446,906.10 is: 387,670,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,868,742.90 : 664,303,114.35 = 258,446,906.10 : x
  2. Step 2: Convert to fraction form
    442,868,742.90/664,303,114.35 = 258,446,906.10/x
  3. Step 3: Cross multiply
    442,868,742.90x = 664,303,114.35 × 258,446,906.10
  4. Step 4: Simplify right side
    442,868,742.90x = 171,687,084,616,352,000
  5. Step 5: Solve for x
    x = 171,687,084,616,352,000/442,868,742.90
  6. Step 6: Final answer
    x = 387,670,359.15

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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.