Home / 860,051,868.78-1,186,972,340.15-488,829,701.46

Finding the Fourth Proportional to 860,051,868.78, 1,186,972,340.15 and 488,829,701.46

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Solution

The fourth proportional to 860,051,868.78, 1,186,972,340.15 and 488,829,701.46 is: 674,642,257.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,051,868.78 : 1,186,972,340.15 = 488,829,701.46 : x
  2. Step 2: Convert to fraction form
    860,051,868.78/1,186,972,340.15 = 488,829,701.46/x
  3. Step 3: Cross multiply
    860,051,868.78x = 1,186,972,340.15 × 488,829,701.46
  4. Step 4: Simplify right side
    860,051,868.78x = 580,227,334,676,802,048
  5. Step 5: Solve for x
    x = 580,227,334,676,802,048/860,051,868.78
  6. Step 6: Final answer
    x = 674,642,257.91

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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.