Home / 144,440,278.34-199,327,970.46-78,360,776.60

Finding the Fourth Proportional to 144,440,278.34, 199,327,970.46 and 78,360,776.60

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Solution

The fourth proportional to 144,440,278.34, 199,327,970.46 and 78,360,776.60 is: 108,138,081.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,440,278.34 : 199,327,970.46 = 78,360,776.60 : x
  2. Step 2: Convert to fraction form
    144,440,278.34/199,327,970.46 = 78,360,776.60/x
  3. Step 3: Cross multiply
    144,440,278.34x = 199,327,970.46 × 78,360,776.60
  4. Step 4: Simplify right side
    144,440,278.34x = 15,619,494,563,392,152
  5. Step 5: Solve for x
    x = 15,619,494,563,392,152/144,440,278.34
  6. Step 6: Final answer
    x = 108,138,081.31

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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.