Home / 209,541,104.64-289,173,280.68-120,249,384.26

Finding the Fourth Proportional to 209,541,104.64, 289,173,280.68 and 120,249,384.26

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Solution

The fourth proportional to 209,541,104.64, 289,173,280.68 and 120,249,384.26 is: 165,947,912.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,541,104.64 : 289,173,280.68 = 120,249,384.26 : x
  2. Step 2: Convert to fraction form
    209,541,104.64/289,173,280.68 = 120,249,384.26/x
  3. Step 3: Cross multiply
    209,541,104.64x = 289,173,280.68 × 120,249,384.26
  4. Step 4: Simplify right side
    209,541,104.64x = 34,772,908,944,768,288
  5. Step 5: Solve for x
    x = 34,772,908,944,768,288/209,541,104.64
  6. Step 6: Final answer
    x = 165,947,912.72

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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.