Home / 208,087,448.88-312,174,971.76-78,692,165.04

Finding the Fourth Proportional to 208,087,448.88, 312,174,971.76 and 78,692,165.04

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Solution

The fourth proportional to 208,087,448.88, 312,174,971.76 and 78,692,165.04 is: 118,054,810.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,087,448.88 : 312,174,971.76 = 78,692,165.04 : x
  2. Step 2: Convert to fraction form
    208,087,448.88/312,174,971.76 = 78,692,165.04/x
  3. Step 3: Cross multiply
    208,087,448.88x = 312,174,971.76 × 78,692,165.04
  4. Step 4: Simplify right side
    208,087,448.88x = 24,565,724,399,095,260
  5. Step 5: Solve for x
    x = 24,565,724,399,095,260/208,087,448.88
  6. Step 6: Final answer
    x = 118,054,810.76

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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.