Home / 208,795,461.50-312,716,112.78-99,697,045.88

Finding the Fourth Proportional to 208,795,461.50, 312,716,112.78 and 99,697,045.88

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Solution

The fourth proportional to 208,795,461.50, 312,716,112.78 and 99,697,045.88 is: 149,317,769.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,795,461.50 : 312,716,112.78 = 99,697,045.88 : x
  2. Step 2: Convert to fraction form
    208,795,461.50/312,716,112.78 = 99,697,045.88/x
  3. Step 3: Cross multiply
    208,795,461.50x = 312,716,112.78 × 99,697,045.88
  4. Step 4: Simplify right side
    208,795,461.50x = 31,176,872,643,242,912
  5. Step 5: Solve for x
    x = 31,176,872,643,242,912/208,795,461.50
  6. Step 6: Final answer
    x = 149,317,769.74

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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.