Home / 636,478,978,515.56-878,361,779,121.06-347,462,648,756.84

Finding the Fourth Proportional to 636,478,978,515.56, 878,361,779,121.06 and 347,462,648,756.84

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Solution

The fourth proportional to 636,478,978,515.56, 878,361,779,121.06 and 347,462,648,756.84 is: 479,509,804,160.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,478,978,515.56 : 878,361,779,121.06 = 347,462,648,756.84 : x
  2. Step 2: Convert to fraction form
    636,478,978,515.56/878,361,779,121.06 = 347,462,648,756.84/x
  3. Step 3: Cross multiply
    636,478,978,515.56x = 878,361,779,121.06 × 347,462,648,756.84
  4. Step 4: Simplify right side
    636,478,978,515.56x = 305,197,910,340,173,989,675,008
  5. Step 5: Solve for x
    x = 305,197,910,340,173,989,675,008/636,478,978,515.56
  6. Step 6: Final answer
    x = 479,509,804,160.35

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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.