Home / 291,275,999.80-436,913,999.70-118,658,714.20

Finding the Fourth Proportional to 291,275,999.80, 436,913,999.70 and 118,658,714.20

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Solution

The fourth proportional to 291,275,999.80, 436,913,999.70 and 118,658,714.20 is: 177,988,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,275,999.80 : 436,913,999.70 = 118,658,714.20 : x
  2. Step 2: Convert to fraction form
    291,275,999.80/436,913,999.70 = 118,658,714.20/x
  3. Step 3: Cross multiply
    291,275,999.80x = 436,913,999.70 × 118,658,714.20
  4. Step 4: Simplify right side
    291,275,999.80x = 51,843,653,420,381,184
  5. Step 5: Solve for x
    x = 51,843,653,420,381,184/291,275,999.80
  6. Step 6: Final answer
    x = 177,988,071.30

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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.