Home / 209,209,528.26-289,107,325.76-156,907,762.25

Finding the Fourth Proportional to 209,209,528.26, 289,107,325.76 and 156,907,762.25

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Solution

The fourth proportional to 209,209,528.26, 289,107,325.76 and 156,907,762.25 is: 216,831,345.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,209,528.26 : 289,107,325.76 = 156,907,762.25 : x
  2. Step 2: Convert to fraction form
    209,209,528.26/289,107,325.76 = 156,907,762.25/x
  3. Step 3: Cross multiply
    209,209,528.26x = 289,107,325.76 × 156,907,762.25
  4. Step 4: Simplify right side
    209,209,528.26x = 45,363,183,532,853,304
  5. Step 5: Solve for x
    x = 45,363,183,532,853,304/209,209,528.26
  6. Step 6: Final answer
    x = 216,831,345.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.