Home / 1,001,788,995.98-1,382,470,440.82-555,752,370.78

Finding the Fourth Proportional to 1,001,788,995.98, 1,382,470,440.82 and 555,752,370.78

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Solution

The fourth proportional to 1,001,788,995.98, 1,382,470,440.82 and 555,752,370.78 is: 766,939,173.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,788,995.98 : 1,382,470,440.82 = 555,752,370.78 : x
  2. Step 2: Convert to fraction form
    1,001,788,995.98/1,382,470,440.82 = 555,752,370.78/x
  3. Step 3: Cross multiply
    1,001,788,995.98x = 1,382,470,440.82 × 555,752,370.78
  4. Step 4: Simplify right side
    1,001,788,995.98x = 768,311,225,017,597,312
  5. Step 5: Solve for x
    x = 768,311,225,017,597,312/1,001,788,995.98
  6. Step 6: Final answer
    x = 766,939,173.92

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Double scale
Find fourth proportional to 1,001,788,996.98, 1,382,470,442.20 and 555,752,371.78
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.