Home / 290,405,720.20-436,112,465.10-154,356,824.20

Finding the Fourth Proportional to 290,405,720.20, 436,112,465.10 and 154,356,824.20

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Solution

The fourth proportional to 290,405,720.20, 436,112,465.10 and 154,356,824.20 is: 231,803,061.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,405,720.20 : 436,112,465.10 = 154,356,824.20 : x
  2. Step 2: Convert to fraction form
    290,405,720.20/436,112,465.10 = 154,356,824.20/x
  3. Step 3: Cross multiply
    290,405,720.20x = 436,112,465.10 × 154,356,824.20
  4. Step 4: Simplify right side
    290,405,720.20x = 67,316,935,106,869,336
  5. Step 5: Solve for x
    x = 67,316,935,106,869,336/290,405,720.20
  6. Step 6: Final answer
    x = 231,803,061.80

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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.