Home / 128,385,985,290.46-192,547,154,376.57-43,393,890,284.06

Finding the Fourth Proportional to 128,385,985,290.46, 192,547,154,376.57 and 43,393,890,284.06

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Solution

The fourth proportional to 128,385,985,290.46, 192,547,154,376.57 and 43,393,890,284.06 is: 65,080,079,205.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,385,985,290.46 : 192,547,154,376.57 = 43,393,890,284.06 : x
  2. Step 2: Convert to fraction form
    128,385,985,290.46/192,547,154,376.57 = 43,393,890,284.06/x
  3. Step 3: Cross multiply
    128,385,985,290.46x = 192,547,154,376.57 × 43,393,890,284.06
  4. Step 4: Simplify right side
    128,385,985,290.46x = 8,355,370,091,523,879,206,912
  5. Step 5: Solve for x
    x = 8,355,370,091,523,879,206,912/128,385,985,290.46
  6. Step 6: Final answer
    x = 65,080,079,205.07

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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.