Home / 499,574,307.75-689,420,670.91-273,509,492.30

Finding the Fourth Proportional to 499,574,307.75, 689,420,670.91 and 273,509,492.30

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Solution

The fourth proportional to 499,574,307.75, 689,420,670.91 and 273,509,492.30 is: 377,447,548.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,574,307.75 : 689,420,670.91 = 273,509,492.30 : x
  2. Step 2: Convert to fraction form
    499,574,307.75/689,420,670.91 = 273,509,492.30/x
  3. Step 3: Cross multiply
    499,574,307.75x = 689,420,670.91 × 273,509,492.30
  4. Step 4: Simplify right side
    499,574,307.75x = 188,563,097,680,173,920
  5. Step 5: Solve for x
    x = 188,563,097,680,173,920/499,574,307.75
  6. Step 6: Final answer
    x = 377,447,548.36

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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.