Home / 319,014,537.80-478,521,806.70-204,128,803.40

Finding the Fourth Proportional to 319,014,537.80, 478,521,806.70 and 204,128,803.40

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Solution

The fourth proportional to 319,014,537.80, 478,521,806.70 and 204,128,803.40 is: 306,193,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,014,537.80 : 478,521,806.70 = 204,128,803.40 : x
  2. Step 2: Convert to fraction form
    319,014,537.80/478,521,806.70 = 204,128,803.40/x
  3. Step 3: Cross multiply
    319,014,537.80x = 478,521,806.70 × 204,128,803.40
  4. Step 4: Simplify right side
    319,014,537.80x = 97,680,083,802,477,104
  5. Step 5: Solve for x
    x = 97,680,083,802,477,104/319,014,537.80
  6. Step 6: Final answer
    x = 306,193,205.10

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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.