Home / 30,621,831.60-45,932,747.40-12,434,739.60

Finding the Fourth Proportional to 30,621,831.60, 45,932,747.40 and 12,434,739.60

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Solution

The fourth proportional to 30,621,831.60, 45,932,747.40 and 12,434,739.60 is: 18,652,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,621,831.60 : 45,932,747.40 = 12,434,739.60 : x
  2. Step 2: Convert to fraction form
    30,621,831.60/45,932,747.40 = 12,434,739.60/x
  3. Step 3: Cross multiply
    30,621,831.60x = 45,932,747.40 × 12,434,739.60
  4. Step 4: Simplify right side
    30,621,831.60x = 571,161,753,031,577
  5. Step 5: Solve for x
    x = 571,161,753,031,577/30,621,831.60
  6. Step 6: Final answer
    x = 18,652,109.40

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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.