Home / 712,610,201.37-983,052,620.69-618,392,109.04

Finding the Fourth Proportional to 712,610,201.37, 983,052,620.69 and 618,392,109.04

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Solution

The fourth proportional to 712,610,201.37, 983,052,620.69 and 618,392,109.04 is: 853,077,856.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,610,201.37 : 983,052,620.69 = 618,392,109.04 : x
  2. Step 2: Convert to fraction form
    712,610,201.37/983,052,620.69 = 618,392,109.04/x
  3. Step 3: Cross multiply
    712,610,201.37x = 983,052,620.69 × 618,392,109.04
  4. Step 4: Simplify right side
    712,610,201.37x = 607,911,983,403,924,992
  5. Step 5: Solve for x
    x = 607,911,983,403,924,992/712,610,201.37
  6. Step 6: Final answer
    x = 853,077,856.92

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1.5x scale

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.