Home / 78,889,413.68-118,334,118.69-21,381,683.70

Finding the Fourth Proportional to 78,889,413.68, 118,334,118.69 and 21,381,683.70

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Solution

The fourth proportional to 78,889,413.68, 118,334,118.69 and 21,381,683.70 is: 32,072,525.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,889,413.68 : 118,334,118.69 = 21,381,683.70 : x
  2. Step 2: Convert to fraction form
    78,889,413.68/118,334,118.69 = 21,381,683.70/x
  3. Step 3: Cross multiply
    78,889,413.68x = 118,334,118.69 × 21,381,683.70
  4. Step 4: Simplify right side
    78,889,413.68x = 2,530,182,696,747,838
  5. Step 5: Solve for x
    x = 2,530,182,696,747,838/78,889,413.68
  6. Step 6: Final answer
    x = 32,072,525.06

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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.