Home / 289,752,020.80-434,628,031.20-74,341,268.80

Finding the Fourth Proportional to 289,752,020.80, 434,628,031.20 and 74,341,268.80

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Solution

The fourth proportional to 289,752,020.80, 434,628,031.20 and 74,341,268.80 is: 111,511,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,752,020.80 : 434,628,031.20 = 74,341,268.80 : x
  2. Step 2: Convert to fraction form
    289,752,020.80/434,628,031.20 = 74,341,268.80/x
  3. Step 3: Cross multiply
    289,752,020.80x = 434,628,031.20 × 74,341,268.80
  4. Step 4: Simplify right side
    289,752,020.80x = 32,310,799,295,453,984
  5. Step 5: Solve for x
    x = 32,310,799,295,453,984/289,752,020.80
  6. Step 6: Final answer
    x = 111,511,903.20

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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.