Home / 290,400,254.60-435,217,802.70-213,361,867.40

Finding the Fourth Proportional to 290,400,254.60, 435,217,802.70 and 213,361,867.40

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Solution

The fourth proportional to 290,400,254.60, 435,217,802.70 and 213,361,867.40 is: 319,761,713.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,400,254.60 : 435,217,802.70 = 213,361,867.40 : x
  2. Step 2: Convert to fraction form
    290,400,254.60/435,217,802.70 = 213,361,867.40/x
  3. Step 3: Cross multiply
    290,400,254.60x = 435,217,802.70 × 213,361,867.40
  4. Step 4: Simplify right side
    290,400,254.60x = 92,858,883,109,796,768
  5. Step 5: Solve for x
    x = 92,858,883,109,796,768/290,400,254.60
  6. Step 6: Final answer
    x = 319,761,713.84

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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.