Home / 142,083,652.80-196,075,437.92-76,893,556.16

Finding the Fourth Proportional to 142,083,652.80, 196,075,437.92 and 76,893,556.16

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Solution

The fourth proportional to 142,083,652.80, 196,075,437.92 and 76,893,556.16 is: 106,113,105.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,083,652.80 : 196,075,437.92 = 76,893,556.16 : x
  2. Step 2: Convert to fraction form
    142,083,652.80/196,075,437.92 = 76,893,556.16/x
  3. Step 3: Cross multiply
    142,083,652.80x = 196,075,437.92 × 76,893,556.16
  4. Step 4: Simplify right side
    142,083,652.80x = 15,076,937,697,298,112
  5. Step 5: Solve for x
    x = 15,076,937,697,298,112/142,083,652.80
  6. Step 6: Final answer
    x = 106,113,105.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.