Home / 772,662,198.98-1,066,551,186.11-459,395,665.62

Finding the Fourth Proportional to 772,662,198.98, 1,066,551,186.11 and 459,395,665.62

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Solution

The fourth proportional to 772,662,198.98, 1,066,551,186.11 and 459,395,665.62 is: 634,130,921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,662,198.98 : 1,066,551,186.11 = 459,395,665.62 : x
  2. Step 2: Convert to fraction form
    772,662,198.98/1,066,551,186.11 = 459,395,665.62/x
  3. Step 3: Cross multiply
    772,662,198.98x = 1,066,551,186.11 × 459,395,665.62
  4. Step 4: Simplify right side
    772,662,198.98x = 489,968,992,060,803,968
  5. Step 5: Solve for x
    x = 489,968,992,060,803,968/772,662,198.98
  6. Step 6: Final answer
    x = 634,130,921.26

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Double scale
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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.