Home / 824,402,021.70-1,236,603,032.55-279,143,555.70

Finding the Fourth Proportional to 824,402,021.70, 1,236,603,032.55 and 279,143,555.70

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Solution

The fourth proportional to 824,402,021.70, 1,236,603,032.55 and 279,143,555.70 is: 418,715,333.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,402,021.70 : 1,236,603,032.55 = 279,143,555.70 : x
  2. Step 2: Convert to fraction form
    824,402,021.70/1,236,603,032.55 = 279,143,555.70/x
  3. Step 3: Cross multiply
    824,402,021.70x = 1,236,603,032.55 × 279,143,555.70
  4. Step 4: Simplify right side
    824,402,021.70x = 345,189,767,495,409,792
  5. Step 5: Solve for x
    x = 345,189,767,495,409,792/824,402,021.70
  6. Step 6: Final answer
    x = 418,715,333.55

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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.