Home / 288,965,409.40-434,155,902.90-217,301,793.40

Finding the Fourth Proportional to 288,965,409.40, 434,155,902.90 and 217,301,793.40

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Solution

The fourth proportional to 288,965,409.40, 434,155,902.90 and 217,301,793.40 is: 326,484,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,965,409.40 : 434,155,902.90 = 217,301,793.40 : x
  2. Step 2: Convert to fraction form
    288,965,409.40/434,155,902.90 = 217,301,793.40/x
  3. Step 3: Cross multiply
    288,965,409.40x = 434,155,902.90 × 217,301,793.40
  4. Step 4: Simplify right side
    288,965,409.40x = 94,342,856,315,366,256
  5. Step 5: Solve for x
    x = 94,342,856,315,366,256/288,965,409.40
  6. Step 6: Final answer
    x = 326,484,946.80

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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.