Home / 78,054,440.92-107,713,702.71-43,247,004.28

Finding the Fourth Proportional to 78,054,440.92, 107,713,702.71 and 43,247,004.28

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Solution

The fourth proportional to 78,054,440.92, 107,713,702.71 and 43,247,004.28 is: 59,680,075.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,054,440.92 : 107,713,702.71 = 43,247,004.28 : x
  2. Step 2: Convert to fraction form
    78,054,440.92/107,713,702.71 = 43,247,004.28/x
  3. Step 3: Cross multiply
    78,054,440.92x = 107,713,702.71 × 43,247,004.28
  4. Step 4: Simplify right side
    78,054,440.92x = 4,658,294,962,114,017
  5. Step 5: Solve for x
    x = 4,658,294,962,114,017/78,054,440.92
  6. Step 6: Final answer
    x = 59,680,075.95

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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.