Home / 154,602,418.30-231,931,621.05-77,731,992.70

Finding the Fourth Proportional to 154,602,418.30, 231,931,621.05 and 77,731,992.70

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Solution

The fourth proportional to 154,602,418.30, 231,931,621.05 and 77,731,992.70 is: 116,612,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,602,418.30 : 231,931,621.05 = 77,731,992.70 : x
  2. Step 2: Convert to fraction form
    154,602,418.30/231,931,621.05 = 77,731,992.70/x
  3. Step 3: Cross multiply
    154,602,418.30x = 231,931,621.05 × 77,731,992.70
  4. Step 4: Simplify right side
    154,602,418.30x = 18,028,507,074,357,768
  5. Step 5: Solve for x
    x = 18,028,507,074,357,768/154,602,418.30
  6. Step 6: Final answer
    x = 116,612,063.85

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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.