Home / 871,645,608.91-1,202,860,999.70-475,159,851.82

Finding the Fourth Proportional to 871,645,608.91, 1,202,860,999.70 and 475,159,851.82

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Solution

The fourth proportional to 871,645,608.91, 1,202,860,999.70 and 475,159,851.82 is: 655,715,176.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,645,608.91 : 1,202,860,999.70 = 475,159,851.82 : x
  2. Step 2: Convert to fraction form
    871,645,608.91/1,202,860,999.70 = 475,159,851.82/x
  3. Step 3: Cross multiply
    871,645,608.91x = 1,202,860,999.70 × 475,159,851.82
  4. Step 4: Simplify right side
    871,645,608.91x = 571,551,254,377,509,056
  5. Step 5: Solve for x
    x = 571,551,254,377,509,056/871,645,608.91
  6. Step 6: Final answer
    x = 655,715,176.60

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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.