Home / 78,389,939.40-117,577,310.85-23,803,004.76

Finding the Fourth Proportional to 78,389,939.40, 117,577,310.85 and 23,803,004.76

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Solution

The fourth proportional to 78,389,939.40, 117,577,310.85 and 23,803,004.76 is: 35,702,199.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,389,939.40 : 117,577,310.85 = 23,803,004.76 : x
  2. Step 2: Convert to fraction form
    78,389,939.40/117,577,310.85 = 23,803,004.76/x
  3. Step 3: Cross multiply
    78,389,939.40x = 117,577,310.85 × 23,803,004.76
  4. Step 4: Simplify right side
    78,389,939.40x = 2,798,693,289,830,549.50
  5. Step 5: Solve for x
    x = 2,798,693,289,830,549.50/78,389,939.40
  6. Step 6: Final answer
    x = 35,702,199.94

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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.