Home / 31,501,125.90-47,157,210.45-18,715,049.10

Finding the Fourth Proportional to 31,501,125.90, 47,157,210.45 and 18,715,049.10

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Solution

The fourth proportional to 31,501,125.90, 47,157,210.45 and 18,715,049.10 is: 28,016,443.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,501,125.90 : 47,157,210.45 = 18,715,049.10 : x
  2. Step 2: Convert to fraction form
    31,501,125.90/47,157,210.45 = 18,715,049.10/x
  3. Step 3: Cross multiply
    31,501,125.90x = 47,157,210.45 × 18,715,049.10
  4. Step 4: Simplify right side
    31,501,125.90x = 882,549,508,990,783.25
  5. Step 5: Solve for x
    x = 882,549,508,990,783.25/31,501,125.90
  6. Step 6: Final answer
    x = 28,016,443.34

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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.