Home / 678,445,219.20-1,017,667,828.80-445,992,925.80

Finding the Fourth Proportional to 678,445,219.20, 1,017,667,828.80 and 445,992,925.80

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Solution

The fourth proportional to 678,445,219.20, 1,017,667,828.80 and 445,992,925.80 is: 668,989,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,445,219.20 : 1,017,667,828.80 = 445,992,925.80 : x
  2. Step 2: Convert to fraction form
    678,445,219.20/1,017,667,828.80 = 445,992,925.80/x
  3. Step 3: Cross multiply
    678,445,219.20x = 1,017,667,828.80 × 445,992,925.80
  4. Step 4: Simplify right side
    678,445,219.20x = 453,872,652,459,045,504
  5. Step 5: Solve for x
    x = 453,872,652,459,045,504/678,445,219.20
  6. Step 6: Final answer
    x = 668,989,388.70

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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.