Home / 511,977,175.65-767,965,763.48-221,411,808.90

Finding the Fourth Proportional to 511,977,175.65, 767,965,763.48 and 221,411,808.90

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Solution

The fourth proportional to 511,977,175.65, 767,965,763.48 and 221,411,808.90 is: 332,117,713.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,977,175.65 : 767,965,763.48 = 221,411,808.90 : x
  2. Step 2: Convert to fraction form
    511,977,175.65/767,965,763.48 = 221,411,808.90/x
  3. Step 3: Cross multiply
    511,977,175.65x = 767,965,763.48 × 221,411,808.90
  4. Step 4: Simplify right side
    511,977,175.65x = 170,036,688,864,269,312
  5. Step 5: Solve for x
    x = 170,036,688,864,269,312/511,977,175.65
  6. Step 6: Final answer
    x = 332,117,713.35

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Double scale
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Similar ratio
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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.