Home / 489,780,585.60-675,871,699.20-304,137,615.36

Finding the Fourth Proportional to 489,780,585.60, 675,871,699.20 and 304,137,615.36

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Solution

The fourth proportional to 489,780,585.60, 675,871,699.20 and 304,137,615.36 is: 419,694,068.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,780,585.60 : 675,871,699.20 = 304,137,615.36 : x
  2. Step 2: Convert to fraction form
    489,780,585.60/675,871,699.20 = 304,137,615.36/x
  3. Step 3: Cross multiply
    489,780,585.60x = 675,871,699.20 × 304,137,615.36
  4. Step 4: Simplify right side
    489,780,585.60x = 205,558,006,883,999,232
  5. Step 5: Solve for x
    x = 205,558,006,883,999,232/489,780,585.60
  6. Step 6: Final answer
    x = 419,694,068.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.