Home / 1,025,626,081.80-1,538,439,122.70-298,638,510.60

Finding the Fourth Proportional to 1,025,626,081.80, 1,538,439,122.70 and 298,638,510.60

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Solution

The fourth proportional to 1,025,626,081.80, 1,538,439,122.70 and 298,638,510.60 is: 447,957,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,626,081.80 : 1,538,439,122.70 = 298,638,510.60 : x
  2. Step 2: Convert to fraction form
    1,025,626,081.80/1,538,439,122.70 = 298,638,510.60/x
  3. Step 3: Cross multiply
    1,025,626,081.80x = 1,538,439,122.70 × 298,638,510.60
  4. Step 4: Simplify right side
    1,025,626,081.80x = 459,437,168,251,898,688
  5. Step 5: Solve for x
    x = 459,437,168,251,898,688/1,025,626,081.80
  6. Step 6: Final answer
    x = 447,957,765.90

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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.