Home / 118,558,116.71-163,627,323.12-68,312,715.78

Finding the Fourth Proportional to 118,558,116.71, 163,627,323.12 and 68,312,715.78

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Solution

The fourth proportional to 118,558,116.71, 163,627,323.12 and 68,312,715.78 is: 94,281,413.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,558,116.71 : 163,627,323.12 = 68,312,715.78 : x
  2. Step 2: Convert to fraction form
    118,558,116.71/163,627,323.12 = 68,312,715.78/x
  3. Step 3: Cross multiply
    118,558,116.71x = 163,627,323.12 × 68,312,715.78
  4. Step 4: Simplify right side
    118,558,116.71x = 11,177,826,818,317,158
  5. Step 5: Solve for x
    x = 11,177,826,818,317,158/118,558,116.71
  6. Step 6: Final answer
    x = 94,281,413.44

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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.