Home / 931,360,491.17-1,397,040,738.12-378,533,397.72

Finding the Fourth Proportional to 931,360,491.17, 1,397,040,738.12 and 378,533,397.72

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Solution

The fourth proportional to 931,360,491.17, 1,397,040,738.12 and 378,533,397.72 is: 567,800,097.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,360,491.17 : 1,397,040,738.12 = 378,533,397.72 : x
  2. Step 2: Convert to fraction form
    931,360,491.17/1,397,040,738.12 = 378,533,397.72/x
  3. Step 3: Cross multiply
    931,360,491.17x = 1,397,040,738.12 × 378,533,397.72
  4. Step 4: Simplify right side
    931,360,491.17x = 528,826,577,359,059,200
  5. Step 5: Solve for x
    x = 528,826,577,359,059,200/931,360,491.17
  6. Step 6: Final answer
    x = 567,800,097.14

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Double scale
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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.