Home / 208,139,047.44-312,087,552.32-78,756,652.32

Finding the Fourth Proportional to 208,139,047.44, 312,087,552.32 and 78,756,652.32

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Solution

The fourth proportional to 208,139,047.44, 312,087,552.32 and 78,756,652.32 is: 118,089,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,139,047.44 : 312,087,552.32 = 78,756,652.32 : x
  2. Step 2: Convert to fraction form
    208,139,047.44/312,087,552.32 = 78,756,652.32/x
  3. Step 3: Cross multiply
    208,139,047.44x = 312,087,552.32 × 78,756,652.32
  4. Step 4: Simplify right side
    208,139,047.44x = 24,578,970,851,466,048
  5. Step 5: Solve for x
    x = 24,578,970,851,466,048/208,139,047.44
  6. Step 6: Final answer
    x = 118,089,186.79

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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.