Home / 698,382,183.49-963,790,679.63-380,859,753.89

Finding the Fourth Proportional to 698,382,183.49, 963,790,679.63 and 380,859,753.89

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Solution

The fourth proportional to 698,382,183.49, 963,790,679.63 and 380,859,753.89 is: 525,599,148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,382,183.49 : 963,790,679.63 = 380,859,753.89 : x
  2. Step 2: Convert to fraction form
    698,382,183.49/963,790,679.63 = 380,859,753.89/x
  3. Step 3: Cross multiply
    698,382,183.49x = 963,790,679.63 × 380,859,753.89
  4. Step 4: Simplify right side
    698,382,183.49x = 367,069,081,045,357,632
  5. Step 5: Solve for x
    x = 367,069,081,045,357,632/698,382,183.49
  6. Step 6: Final answer
    x = 525,599,148.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.