Home / 85,888,368.20-128,832,552.30-51,450,991.40

Finding the Fourth Proportional to 85,888,368.20, 128,832,552.30 and 51,450,991.40

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Solution

The fourth proportional to 85,888,368.20, 128,832,552.30 and 51,450,991.40 is: 77,176,487.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,888,368.20 : 128,832,552.30 = 51,450,991.40 : x
  2. Step 2: Convert to fraction form
    85,888,368.20/128,832,552.30 = 51,450,991.40/x
  3. Step 3: Cross multiply
    85,888,368.20x = 128,832,552.30 × 51,450,991.40
  4. Step 4: Simplify right side
    85,888,368.20x = 6,628,562,540,427,350
  5. Step 5: Solve for x
    x = 6,628,562,540,427,350/85,888,368.20
  6. Step 6: Final answer
    x = 77,176,487.10

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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.