Home / 78,563,806.76-108,421,433.34-43,756,512.68

Finding the Fourth Proportional to 78,563,806.76, 108,421,433.34 and 43,756,512.68

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Solution

The fourth proportional to 78,563,806.76, 108,421,433.34 and 43,756,512.68 is: 60,385,870.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,563,806.76 : 108,421,433.34 = 43,756,512.68 : x
  2. Step 2: Convert to fraction form
    78,563,806.76/108,421,433.34 = 43,756,512.68/x
  3. Step 3: Cross multiply
    78,563,806.76x = 108,421,433.34 × 43,756,512.68
  4. Step 4: Simplify right side
    78,563,806.76x = 4,744,143,822,725,485
  5. Step 5: Solve for x
    x = 4,744,143,822,725,485/78,563,806.76
  6. Step 6: Final answer
    x = 60,385,870.01

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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.