Home / 81,551,201.80-122,326,802.70-78,415,918.60

Finding the Fourth Proportional to 81,551,201.80, 122,326,802.70 and 78,415,918.60

Calculator

Solution

The fourth proportional to 81,551,201.80, 122,326,802.70 and 78,415,918.60 is: 117,623,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,551,201.80 : 122,326,802.70 = 78,415,918.60 : x
  2. Step 2: Convert to fraction form
    81,551,201.80/122,326,802.70 = 78,415,918.60/x
  3. Step 3: Cross multiply
    81,551,201.80x = 122,326,802.70 × 78,415,918.60
  4. Step 4: Simplify right side
    81,551,201.80x = 9,592,368,603,121,460
  5. Step 5: Solve for x
    x = 9,592,368,603,121,460/81,551,201.80
  6. Step 6: Final answer
    x = 117,623,877.90

Related Problems

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.