Home / 424,980,860.41-636,987,729.48-258,617,444.05

Finding the Fourth Proportional to 424,980,860.41, 636,987,729.48 and 258,617,444.05

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Solution

The fourth proportional to 424,980,860.41, 636,987,729.48 and 258,617,444.05 is: 387,631,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,980,860.41 : 636,987,729.48 = 258,617,444.05 : x
  2. Step 2: Convert to fraction form
    424,980,860.41/636,987,729.48 = 258,617,444.05/x
  3. Step 3: Cross multiply
    424,980,860.41x = 636,987,729.48 × 258,617,444.05
  4. Step 4: Simplify right side
    424,980,860.41x = 164,736,138,489,330,464
  5. Step 5: Solve for x
    x = 164,736,138,489,330,464/424,980,860.41
  6. Step 6: Final answer
    x = 387,631,900.25

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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.