Home / 85,551,200.80-128,326,801.20-65,395,808.80

Finding the Fourth Proportional to 85,551,200.80, 128,326,801.20 and 65,395,808.80

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Solution

The fourth proportional to 85,551,200.80, 128,326,801.20 and 65,395,808.80 is: 98,093,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,551,200.80 : 128,326,801.20 = 65,395,808.80 : x
  2. Step 2: Convert to fraction form
    85,551,200.80/128,326,801.20 = 65,395,808.80/x
  3. Step 3: Cross multiply
    85,551,200.80x = 128,326,801.20 × 65,395,808.80
  4. Step 4: Simplify right side
    85,551,200.80x = 8,392,034,955,190,810
  5. Step 5: Solve for x
    x = 8,392,034,955,190,810/85,551,200.80
  6. Step 6: Final answer
    x = 98,093,713.20

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1.5x scale

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.