Home / 579,492,709.20-869,239,063.80-349,343,326.80

Finding the Fourth Proportional to 579,492,709.20, 869,239,063.80 and 349,343,326.80

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Solution

The fourth proportional to 579,492,709.20, 869,239,063.80 and 349,343,326.80 is: 524,014,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,492,709.20 : 869,239,063.80 = 349,343,326.80 : x
  2. Step 2: Convert to fraction form
    579,492,709.20/869,239,063.80 = 349,343,326.80/x
  3. Step 3: Cross multiply
    579,492,709.20x = 869,239,063.80 × 349,343,326.80
  4. Step 4: Simplify right side
    579,492,709.20x = 303,662,866,332,409,472
  5. Step 5: Solve for x
    x = 303,662,866,332,409,472/579,492,709.20
  6. Step 6: Final answer
    x = 524,014,990.20

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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.