Home / 30,025,728.40-45,042,620.45-10,590,385.64

Finding the Fourth Proportional to 30,025,728.40, 45,042,620.45 and 10,590,385.64

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Solution

The fourth proportional to 30,025,728.40, 45,042,620.45 and 10,590,385.64 is: 15,886,999.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,025,728.40 : 45,042,620.45 = 10,590,385.64 : x
  2. Step 2: Convert to fraction form
    30,025,728.40/45,042,620.45 = 10,590,385.64/x
  3. Step 3: Cross multiply
    30,025,728.40x = 45,042,620.45 × 10,590,385.64
  4. Step 4: Simplify right side
    30,025,728.40x = 477,018,720,861,304.94
  5. Step 5: Solve for x
    x = 477,018,720,861,304.94/30,025,728.40
  6. Step 6: Final answer
    x = 15,886,999.13

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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.