Home / 491,617,279,981.65-737,369,589,509.65-128,617,988,648.46

Finding the Fourth Proportional to 491,617,279,981.65, 737,369,589,509.65 and 128,617,988,648.46

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Solution

The fourth proportional to 491,617,279,981.65, 737,369,589,509.65 and 128,617,988,648.46 is: 192,912,245,673.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,617,279,981.65 : 737,369,589,509.65 = 128,617,988,648.46 : x
  2. Step 2: Convert to fraction form
    491,617,279,981.65/737,369,589,509.65 = 128,617,988,648.46/x
  3. Step 3: Cross multiply
    491,617,279,981.65x = 737,369,589,509.65 × 128,617,988,648.46
  4. Step 4: Simplify right side
    491,617,279,981.65x = 94,838,993,493,271,775,281,152
  5. Step 5: Solve for x
    x = 94,838,993,493,271,775,281,152/491,617,279,981.65
  6. Step 6: Final answer
    x = 192,912,245,673.73

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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.