Home / 389,779,143.72-584,760,388.95-113,436,318.84

Finding the Fourth Proportional to 389,779,143.72, 584,760,388.95 and 113,436,318.84

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Solution

The fourth proportional to 389,779,143.72, 584,760,388.95 and 113,436,318.84 is: 170,181,157.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,779,143.72 : 584,760,388.95 = 113,436,318.84 : x
  2. Step 2: Convert to fraction form
    389,779,143.72/584,760,388.95 = 113,436,318.84/x
  3. Step 3: Cross multiply
    389,779,143.72x = 584,760,388.95 × 113,436,318.84
  4. Step 4: Simplify right side
    389,779,143.72x = 66,333,065,925,934,624
  5. Step 5: Solve for x
    x = 66,333,065,925,934,624/389,779,143.72
  6. Step 6: Final answer
    x = 170,181,157.70

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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.