Home / 98,490,812.40-147,736,218.60-90,554,626.80

Finding the Fourth Proportional to 98,490,812.40, 147,736,218.60 and 90,554,626.80

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Solution

The fourth proportional to 98,490,812.40, 147,736,218.60 and 90,554,626.80 is: 135,831,940.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,490,812.40 : 147,736,218.60 = 90,554,626.80 : x
  2. Step 2: Convert to fraction form
    98,490,812.40/147,736,218.60 = 90,554,626.80/x
  3. Step 3: Cross multiply
    98,490,812.40x = 147,736,218.60 × 90,554,626.80
  4. Step 4: Simplify right side
    98,490,812.40x = 13,378,198,140,166,218
  5. Step 5: Solve for x
    x = 13,378,198,140,166,218/98,490,812.40
  6. Step 6: Final answer
    x = 135,831,940.20

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Similar ratio
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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.