Home / 326,300,526-489,271,890-129,364,434.72

Finding the Fourth Proportional to 326,300,526, 489,271,890 and 129,364,434.72

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Solution

The fourth proportional to 326,300,526, 489,271,890 and 129,364,434.72 is: 193,975,726.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,300,526 : 489,271,890 = 129,364,434.72 : x
  2. Step 2: Convert to fraction form
    326,300,526/489,271,890 = 129,364,434.72/x
  3. Step 3: Cross multiply
    326,300,526x = 489,271,890 × 129,364,434.72
  4. Step 4: Simplify right side
    326,300,526x = 63,294,381,474,236,024
  5. Step 5: Solve for x
    x = 63,294,381,474,236,024/326,300,526
  6. Step 6: Final answer
    x = 193,975,726.15

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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.