Home / 177,379,810.10-266,069,715.15-128,628,955.70

Finding the Fourth Proportional to 177,379,810.10, 266,069,715.15 and 128,628,955.70

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Solution

The fourth proportional to 177,379,810.10, 266,069,715.15 and 128,628,955.70 is: 192,943,433.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,379,810.10 : 266,069,715.15 = 128,628,955.70 : x
  2. Step 2: Convert to fraction form
    177,379,810.10/266,069,715.15 = 128,628,955.70/x
  3. Step 3: Cross multiply
    177,379,810.10x = 266,069,715.15 × 128,628,955.70
  4. Step 4: Simplify right side
    177,379,810.10x = 34,224,269,603,140,972
  5. Step 5: Solve for x
    x = 34,224,269,603,140,972/177,379,810.10
  6. Step 6: Final answer
    x = 192,943,433.55

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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.