Home / 499,602,923.25-689,524,186.31-287,869,217.28

Finding the Fourth Proportional to 499,602,923.25, 689,524,186.31 and 287,869,217.28

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Solution

The fourth proportional to 499,602,923.25, 689,524,186.31 and 287,869,217.28 is: 397,301,093.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,602,923.25 : 689,524,186.31 = 287,869,217.28 : x
  2. Step 2: Convert to fraction form
    499,602,923.25/689,524,186.31 = 287,869,217.28/x
  3. Step 3: Cross multiply
    499,602,923.25x = 689,524,186.31 × 287,869,217.28
  4. Step 4: Simplify right side
    499,602,923.25x = 198,492,787,808,688,544
  5. Step 5: Solve for x
    x = 198,492,787,808,688,544/499,602,923.25
  6. Step 6: Final answer
    x = 397,301,093.67

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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.