Home / 387,100,025.40-580,650,038.10-264,475,615.80

Finding the Fourth Proportional to 387,100,025.40, 580,650,038.10 and 264,475,615.80

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Solution

The fourth proportional to 387,100,025.40, 580,650,038.10 and 264,475,615.80 is: 396,713,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,100,025.40 : 580,650,038.10 = 264,475,615.80 : x
  2. Step 2: Convert to fraction form
    387,100,025.40/580,650,038.10 = 264,475,615.80/x
  3. Step 3: Cross multiply
    387,100,025.40x = 580,650,038.10 × 264,475,615.80
  4. Step 4: Simplify right side
    387,100,025.40x = 153,567,776,390,790,976
  5. Step 5: Solve for x
    x = 153,567,776,390,790,976/387,100,025.40
  6. Step 6: Final answer
    x = 396,713,423.70

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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.