Home / 434,128,986.40-651,193,479.60-261,942,102.40

Finding the Fourth Proportional to 434,128,986.40, 651,193,479.60 and 261,942,102.40

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Solution

The fourth proportional to 434,128,986.40, 651,193,479.60 and 261,942,102.40 is: 392,913,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,128,986.40 : 651,193,479.60 = 261,942,102.40 : x
  2. Step 2: Convert to fraction form
    434,128,986.40/651,193,479.60 = 261,942,102.40/x
  3. Step 3: Cross multiply
    434,128,986.40x = 651,193,479.60 × 261,942,102.40
  4. Step 4: Simplify right side
    434,128,986.40x = 170,574,989,115,595,520
  5. Step 5: Solve for x
    x = 170,574,989,115,595,520/434,128,986.40
  6. Step 6: Final answer
    x = 392,913,153.60

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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.