Home / 289,981,030.40-434,971,545.60-98,504,806.40

Finding the Fourth Proportional to 289,981,030.40, 434,971,545.60 and 98,504,806.40

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Solution

The fourth proportional to 289,981,030.40, 434,971,545.60 and 98,504,806.40 is: 147,757,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,981,030.40 : 434,971,545.60 = 98,504,806.40 : x
  2. Step 2: Convert to fraction form
    289,981,030.40/434,971,545.60 = 98,504,806.40/x
  3. Step 3: Cross multiply
    289,981,030.40x = 434,971,545.60 × 98,504,806.40
  4. Step 4: Simplify right side
    289,981,030.40x = 42,846,787,888,836,776
  5. Step 5: Solve for x
    x = 42,846,787,888,836,776/289,981,030.40
  6. Step 6: Final answer
    x = 147,757,209.60

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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.