Home / 208,087,449.88-312,174,973.26-78,692,166.04

Finding the Fourth Proportional to 208,087,449.88, 312,174,973.26 and 78,692,166.04

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Solution

The fourth proportional to 208,087,449.88, 312,174,973.26 and 78,692,166.04 is: 118,054,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,087,449.88 : 312,174,973.26 = 78,692,166.04 : x
  2. Step 2: Convert to fraction form
    208,087,449.88/312,174,973.26 = 78,692,166.04/x
  3. Step 3: Cross multiply
    208,087,449.88x = 312,174,973.26 × 78,692,166.04
  4. Step 4: Simplify right side
    208,087,449.88x = 24,565,724,829,308,480
  5. Step 5: Solve for x
    x = 24,565,724,829,308,480/208,087,449.88
  6. Step 6: Final answer
    x = 118,054,812.26

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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.