Home / 864,054,876.38-1,192,015,748.49-506,640,218.54

Finding the Fourth Proportional to 864,054,876.38, 1,192,015,748.49 and 506,640,218.54

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Solution

The fourth proportional to 864,054,876.38, 1,192,015,748.49 and 506,640,218.54 is: 698,940,699.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,054,876.38 : 1,192,015,748.49 = 506,640,218.54 : x
  2. Step 2: Convert to fraction form
    864,054,876.38/1,192,015,748.49 = 506,640,218.54/x
  3. Step 3: Cross multiply
    864,054,876.38x = 1,192,015,748.49 × 506,640,218.54
  4. Step 4: Simplify right side
    864,054,876.38x = 603,923,119,318,095,360
  5. Step 5: Solve for x
    x = 603,923,119,318,095,360/864,054,876.38
  6. Step 6: Final answer
    x = 698,940,699.05

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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.