Home / 918,354,411.18-1,377,249,067.31-263,129,878.22

Finding the Fourth Proportional to 918,354,411.18, 1,377,249,067.31 and 263,129,878.22

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Solution

The fourth proportional to 918,354,411.18, 1,377,249,067.31 and 263,129,878.22 is: 394,613,860.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,354,411.18 : 1,377,249,067.31 = 263,129,878.22 : x
  2. Step 2: Convert to fraction form
    918,354,411.18/1,377,249,067.31 = 263,129,878.22/x
  3. Step 3: Cross multiply
    918,354,411.18x = 1,377,249,067.31 × 263,129,878.22
  4. Step 4: Simplify right side
    918,354,411.18x = 362,395,379,351,687,040
  5. Step 5: Solve for x
    x = 362,395,379,351,687,040/918,354,411.18
  6. Step 6: Final answer
    x = 394,613,860.34

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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.