Home / 290,333,477.40-435,500,216.10-263,459,621.40

Finding the Fourth Proportional to 290,333,477.40, 435,500,216.10 and 263,459,621.40

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Solution

The fourth proportional to 290,333,477.40, 435,500,216.10 and 263,459,621.40 is: 395,189,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,333,477.40 : 435,500,216.10 = 263,459,621.40 : x
  2. Step 2: Convert to fraction form
    290,333,477.40/435,500,216.10 = 263,459,621.40/x
  3. Step 3: Cross multiply
    290,333,477.40x = 435,500,216.10 × 263,459,621.40
  4. Step 4: Simplify right side
    290,333,477.40x = 114,736,722,053,324,192
  5. Step 5: Solve for x
    x = 114,736,722,053,324,192/290,333,477.40
  6. Step 6: Final answer
    x = 395,189,432.10

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1.5x scale

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.