Home / 778,752,003.80-1,168,128,005.70-396,546,051.80

Finding the Fourth Proportional to 778,752,003.80, 1,168,128,005.70 and 396,546,051.80

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Solution

The fourth proportional to 778,752,003.80, 1,168,128,005.70 and 396,546,051.80 is: 594,819,077.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,752,003.80 : 1,168,128,005.70 = 396,546,051.80 : x
  2. Step 2: Convert to fraction form
    778,752,003.80/1,168,128,005.70 = 396,546,051.80/x
  3. Step 3: Cross multiply
    778,752,003.80x = 1,168,128,005.70 × 396,546,051.80
  4. Step 4: Simplify right side
    778,752,003.80x = 463,216,548,657,342,912
  5. Step 5: Solve for x
    x = 463,216,548,657,342,912/778,752,003.80
  6. Step 6: Final answer
    x = 594,819,077.70

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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.