Home / 384,912,010.40-577,368,015.60-239,509,752.80

Finding the Fourth Proportional to 384,912,010.40, 577,368,015.60 and 239,509,752.80

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Solution

The fourth proportional to 384,912,010.40, 577,368,015.60 and 239,509,752.80 is: 359,264,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,912,010.40 : 577,368,015.60 = 239,509,752.80 : x
  2. Step 2: Convert to fraction form
    384,912,010.40/577,368,015.60 = 239,509,752.80/x
  3. Step 3: Cross multiply
    384,912,010.40x = 577,368,015.60 × 239,509,752.80
  4. Step 4: Simplify right side
    384,912,010.40x = 138,285,270,690,982,560
  5. Step 5: Solve for x
    x = 138,285,270,690,982,560/384,912,010.40
  6. Step 6: Final answer
    x = 359,264,629.20

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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.