Home / 326,617,961.40-489,926,942.10-288,354,209.40

Finding the Fourth Proportional to 326,617,961.40, 489,926,942.10 and 288,354,209.40

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Solution

The fourth proportional to 326,617,961.40, 489,926,942.10 and 288,354,209.40 is: 432,531,314.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,617,961.40 : 489,926,942.10 = 288,354,209.40 : x
  2. Step 2: Convert to fraction form
    326,617,961.40/489,926,942.10 = 288,354,209.40/x
  3. Step 3: Cross multiply
    326,617,961.40x = 489,926,942.10 × 288,354,209.40
  4. Step 4: Simplify right side
    326,617,961.40x = 141,272,496,053,005,072
  5. Step 5: Solve for x
    x = 141,272,496,053,005,072/326,617,961.40
  6. Step 6: Final answer
    x = 432,531,314.10

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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.