Home / 326,428,890.40-489,911,024.40-323,877,973.60

Finding the Fourth Proportional to 326,428,890.40, 489,911,024.40 and 323,877,973.60

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Solution

The fourth proportional to 326,428,890.40, 489,911,024.40 and 323,877,973.60 is: 486,082,557.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,428,890.40 : 489,911,024.40 = 323,877,973.60 : x
  2. Step 2: Convert to fraction form
    326,428,890.40/489,911,024.40 = 323,877,973.60/x
  3. Step 3: Cross multiply
    326,428,890.40x = 489,911,024.40 × 323,877,973.60
  4. Step 4: Simplify right side
    326,428,890.40x = 158,671,389,826,972,160
  5. Step 5: Solve for x
    x = 158,671,389,826,972,160/326,428,890.40
  6. Step 6: Final answer
    x = 486,082,557.31

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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.