Home / 931,360,423.12-1,397,040,636.05-378,533,329.67

Finding the Fourth Proportional to 931,360,423.12, 1,397,040,636.05 and 378,533,329.67

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Solution

The fourth proportional to 931,360,423.12, 1,397,040,636.05 and 378,533,329.67 is: 567,799,995.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,360,423.12 : 1,397,040,636.05 = 378,533,329.67 : x
  2. Step 2: Convert to fraction form
    931,360,423.12/1,397,040,636.05 = 378,533,329.67/x
  3. Step 3: Cross multiply
    931,360,423.12x = 1,397,040,636.05 × 378,533,329.67
  4. Step 4: Simplify right side
    931,360,423.12x = 528,826,443,649,901,120
  5. Step 5: Solve for x
    x = 528,826,443,649,901,120/931,360,423.12
  6. Step 6: Final answer
    x = 567,799,995.07

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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.