Home / 638,525,143,113.72-957,790,199,560.81-154,478,586,748.62

Finding the Fourth Proportional to 638,525,143,113.72, 957,790,199,560.81 and 154,478,586,748.62

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Solution

The fourth proportional to 638,525,143,113.72, 957,790,199,560.81 and 154,478,586,748.62 is: 231,718,481,293.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,525,143,113.72 : 957,790,199,560.81 = 154,478,586,748.62 : x
  2. Step 2: Convert to fraction form
    638,525,143,113.72/957,790,199,560.81 = 154,478,586,748.62/x
  3. Step 3: Cross multiply
    638,525,143,113.72x = 957,790,199,560.81 × 154,478,586,748.62
  4. Step 4: Simplify right side
    638,525,143,113.72x = 147,958,076,429,832,659,402,752
  5. Step 5: Solve for x
    x = 147,958,076,429,832,659,402,752/638,525,143,113.72
  6. Step 6: Final answer
    x = 231,718,481,293.20

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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.