Home / 620,938,165.86-856,904,771.58-338,680,535.20

Finding the Fourth Proportional to 620,938,165.86, 856,904,771.58 and 338,680,535.20

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Solution

The fourth proportional to 620,938,165.86, 856,904,771.58 and 338,680,535.20 is: 467,384,648.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,938,165.86 : 856,904,771.58 = 338,680,535.20 : x
  2. Step 2: Convert to fraction form
    620,938,165.86/856,904,771.58 = 338,680,535.20/x
  3. Step 3: Cross multiply
    620,938,165.86x = 856,904,771.58 × 338,680,535.20
  4. Step 4: Simplify right side
    620,938,165.86x = 290,216,966,654,108,992
  5. Step 5: Solve for x
    x = 290,216,966,654,108,992/620,938,165.86
  6. Step 6: Final answer
    x = 467,384,648.93

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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.