Home / 290,331,809.80-435,497,714.70-265,249,544.20

Finding the Fourth Proportional to 290,331,809.80, 435,497,714.70 and 265,249,544.20

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Solution

The fourth proportional to 290,331,809.80, 435,497,714.70 and 265,249,544.20 is: 397,874,316.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,331,809.80 : 435,497,714.70 = 265,249,544.20 : x
  2. Step 2: Convert to fraction form
    290,331,809.80/435,497,714.70 = 265,249,544.20/x
  3. Step 3: Cross multiply
    290,331,809.80x = 435,497,714.70 × 265,249,544.20
  4. Step 4: Simplify right side
    290,331,809.80x = 115,515,570,324,316,624
  5. Step 5: Solve for x
    x = 115,515,570,324,316,624/290,331,809.80
  6. Step 6: Final answer
    x = 397,874,316.30

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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.