Home / 1,297,632,690-1,790,696,116.53-761,775,738.48

Finding the Fourth Proportional to 1,297,632,690, 1,790,696,116.53 and 761,775,738.48

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Solution

The fourth proportional to 1,297,632,690, 1,790,696,116.53 and 761,775,738.48 is: 1,051,228,800.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,632,690 : 1,790,696,116.53 = 761,775,738.48 : x
  2. Step 2: Convert to fraction form
    1,297,632,690/1,790,696,116.53 = 761,775,738.48/x
  3. Step 3: Cross multiply
    1,297,632,690x = 1,790,696,116.53 × 761,775,738.48
  4. Step 4: Simplify right side
    1,297,632,690x = 1,364,108,856,562,908,928
  5. Step 5: Solve for x
    x = 1,364,108,856,562,908,928/1,297,632,690
  6. Step 6: Final answer
    x = 1,051,228,800.78

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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.