Home / 78,907,792.65-108,888,055.18-43,623,483.70

Finding the Fourth Proportional to 78,907,792.65, 108,888,055.18 and 43,623,483.70

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Solution

The fourth proportional to 78,907,792.65, 108,888,055.18 and 43,623,483.70 is: 60,197,809.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,907,792.65 : 108,888,055.18 = 43,623,483.70 : x
  2. Step 2: Convert to fraction form
    78,907,792.65/108,888,055.18 = 43,623,483.70/x
  3. Step 3: Cross multiply
    78,907,792.65x = 108,888,055.18 × 43,623,483.70
  4. Step 4: Simplify right side
    78,907,792.65x = 4,750,076,300,269,431
  5. Step 5: Solve for x
    x = 4,750,076,300,269,431/78,907,792.65
  6. Step 6: Final answer
    x = 60,197,809.88

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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.