Home / 113,322,831.40-169,984,247.10-90,648,015.40

Finding the Fourth Proportional to 113,322,831.40, 169,984,247.10 and 90,648,015.40

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Solution

The fourth proportional to 113,322,831.40, 169,984,247.10 and 90,648,015.40 is: 135,972,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,322,831.40 : 169,984,247.10 = 90,648,015.40 : x
  2. Step 2: Convert to fraction form
    113,322,831.40/169,984,247.10 = 90,648,015.40/x
  3. Step 3: Cross multiply
    113,322,831.40x = 169,984,247.10 × 90,648,015.40
  4. Step 4: Simplify right side
    113,322,831.40x = 15,408,734,648,878,206
  5. Step 5: Solve for x
    x = 15,408,734,648,878,206/113,322,831.40
  6. Step 6: Final answer
    x = 135,972,023.10

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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.