Home / 386,690,821.60-580,036,232.40-371,574,277.60

Finding the Fourth Proportional to 386,690,821.60, 580,036,232.40 and 371,574,277.60

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Solution

The fourth proportional to 386,690,821.60, 580,036,232.40 and 371,574,277.60 is: 557,361,416.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,690,821.60 : 580,036,232.40 = 371,574,277.60 : x
  2. Step 2: Convert to fraction form
    386,690,821.60/580,036,232.40 = 371,574,277.60/x
  3. Step 3: Cross multiply
    386,690,821.60x = 580,036,232.40 × 371,574,277.60
  4. Step 4: Simplify right side
    386,690,821.60x = 215,526,544,035,855,712
  5. Step 5: Solve for x
    x = 215,526,544,035,855,712/386,690,821.60
  6. Step 6: Final answer
    x = 557,361,416.40

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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.