Home / 12,265,605,831.60-18,398,408,747.40-7,857,621,601.20

Finding the Fourth Proportional to 12,265,605,831.60, 18,398,408,747.40 and 7,857,621,601.20

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Solution

The fourth proportional to 12,265,605,831.60, 18,398,408,747.40 and 7,857,621,601.20 is: 11,786,432,401.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,265,605,831.60 : 18,398,408,747.40 = 7,857,621,601.20 : x
  2. Step 2: Convert to fraction form
    12,265,605,831.60/18,398,408,747.40 = 7,857,621,601.20/x
  3. Step 3: Cross multiply
    12,265,605,831.60x = 18,398,408,747.40 × 7,857,621,601.20
  4. Step 4: Simplify right side
    12,265,605,831.60x = 144,567,734,001,277,288,448
  5. Step 5: Solve for x
    x = 144,567,734,001,277,288,448/12,265,605,831.60
  6. Step 6: Final answer
    x = 11,786,432,401.80

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1.5x scale

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.