Home / 1,990,663,234.40-2,985,994,851.60-1,668,176,962.40

Finding the Fourth Proportional to 1,990,663,234.40, 2,985,994,851.60 and 1,668,176,962.40

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Solution

The fourth proportional to 1,990,663,234.40, 2,985,994,851.60 and 1,668,176,962.40 is: 2,502,265,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,663,234.40 : 2,985,994,851.60 = 1,668,176,962.40 : x
  2. Step 2: Convert to fraction form
    1,990,663,234.40/2,985,994,851.60 = 1,668,176,962.40/x
  3. Step 3: Cross multiply
    1,990,663,234.40x = 2,985,994,851.60 × 1,668,176,962.40
  4. Step 4: Simplify right side
    1,990,663,234.40x = 4,981,167,821,284,126,720
  5. Step 5: Solve for x
    x = 4,981,167,821,284,126,720/1,990,663,234.40
  6. Step 6: Final answer
    x = 2,502,265,443.60

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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.