Home / 489,191,934.40-732,862,046.93-289,172,390.72

Finding the Fourth Proportional to 489,191,934.40, 732,862,046.93 and 289,172,390.72

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Solution

The fourth proportional to 489,191,934.40, 732,862,046.93 and 289,172,390.72 is: 433,211,292.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,191,934.40 : 732,862,046.93 = 289,172,390.72 : x
  2. Step 2: Convert to fraction form
    489,191,934.40/732,862,046.93 = 289,172,390.72/x
  3. Step 3: Cross multiply
    489,191,934.40x = 732,862,046.93 × 289,172,390.72
  4. Step 4: Simplify right side
    489,191,934.40x = 211,923,470,173,590,720
  5. Step 5: Solve for x
    x = 211,923,470,173,590,720/489,191,934.40
  6. Step 6: Final answer
    x = 433,211,292.49

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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.