Home / 102,086,790.80-152,990,218.20-65,583,136.40

Finding the Fourth Proportional to 102,086,790.80, 152,990,218.20 and 65,583,136.40

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Solution

The fourth proportional to 102,086,790.80, 152,990,218.20 and 65,583,136.40 is: 98,284,785.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,086,790.80 : 152,990,218.20 = 65,583,136.40 : x
  2. Step 2: Convert to fraction form
    102,086,790.80/152,990,218.20 = 65,583,136.40/x
  3. Step 3: Cross multiply
    102,086,790.80x = 152,990,218.20 × 65,583,136.40
  4. Step 4: Simplify right side
    102,086,790.80x = 10,033,578,348,076,362
  5. Step 5: Solve for x
    x = 10,033,578,348,076,362/102,086,790.80
  6. Step 6: Final answer
    x = 98,284,785.62

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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.