Home / 78,084,406.22-117,139,777.49-26,256,688.85

Finding the Fourth Proportional to 78,084,406.22, 117,139,777.49 and 26,256,688.85

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Solution

The fourth proportional to 78,084,406.22, 117,139,777.49 and 26,256,688.85 is: 39,389,461.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,084,406.22 : 117,139,777.49 = 26,256,688.85 : x
  2. Step 2: Convert to fraction form
    78,084,406.22/117,139,777.49 = 26,256,688.85/x
  3. Step 3: Cross multiply
    78,084,406.22x = 117,139,777.49 × 26,256,688.85
  4. Step 4: Simplify right side
    78,084,406.22x = 3,075,702,689,871,655
  5. Step 5: Solve for x
    x = 3,075,702,689,871,655/78,084,406.22
  6. Step 6: Final answer
    x = 39,389,461.21

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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.