Home / 891,877,944.38-1,337,830,370.27-309,630,685.42

Finding the Fourth Proportional to 891,877,944.38, 1,337,830,370.27 and 309,630,685.42

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Solution

The fourth proportional to 891,877,944.38, 1,337,830,370.27 and 309,630,685.42 is: 464,450,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,877,944.38 : 1,337,830,370.27 = 309,630,685.42 : x
  2. Step 2: Convert to fraction form
    891,877,944.38/1,337,830,370.27 = 309,630,685.42/x
  3. Step 3: Cross multiply
    891,877,944.38x = 1,337,830,370.27 × 309,630,685.42
  4. Step 4: Simplify right side
    891,877,944.38x = 414,233,334,514,155,264
  5. Step 5: Solve for x
    x = 414,233,334,514,155,264/891,877,944.38
  6. Step 6: Final answer
    x = 464,450,698.80

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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.