Home / 130,003,979.10-195,005,968.65-53,381,996.70

Finding the Fourth Proportional to 130,003,979.10, 195,005,968.65 and 53,381,996.70

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Solution

The fourth proportional to 130,003,979.10, 195,005,968.65 and 53,381,996.70 is: 80,072,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,003,979.10 : 195,005,968.65 = 53,381,996.70 : x
  2. Step 2: Convert to fraction form
    130,003,979.10/195,005,968.65 = 53,381,996.70/x
  3. Step 3: Cross multiply
    130,003,979.10x = 195,005,968.65 × 53,381,996.70
  4. Step 4: Simplify right side
    130,003,979.10x = 10,409,807,974,954,604
  5. Step 5: Solve for x
    x = 10,409,807,974,954,604/130,003,979.10
  6. Step 6: Final answer
    x = 80,072,995.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.