Home / 78,075,685.86-117,138,004.11-46,985,266.86

Finding the Fourth Proportional to 78,075,685.86, 117,138,004.11 and 46,985,266.86

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Solution

The fourth proportional to 78,075,685.86, 117,138,004.11 and 46,985,266.86 is: 70,492,629.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,075,685.86 : 117,138,004.11 = 46,985,266.86 : x
  2. Step 2: Convert to fraction form
    78,075,685.86/117,138,004.11 = 46,985,266.86/x
  3. Step 3: Cross multiply
    78,075,685.86x = 117,138,004.11 × 46,985,266.86
  4. Step 4: Simplify right side
    78,075,685.86x = 5,503,760,382,556,127
  5. Step 5: Solve for x
    x = 5,503,760,382,556,127/78,075,685.86
  6. Step 6: Final answer
    x = 70,492,629.32

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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.