Home / 20,223,727,831.20-30,335,591,746.80-12,387,311,421.60

Finding the Fourth Proportional to 20,223,727,831.20, 30,335,591,746.80 and 12,387,311,421.60

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Solution

The fourth proportional to 20,223,727,831.20, 30,335,591,746.80 and 12,387,311,421.60 is: 18,580,967,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223,727,831.20 : 30,335,591,746.80 = 12,387,311,421.60 : x
  2. Step 2: Convert to fraction form
    20,223,727,831.20/30,335,591,746.80 = 12,387,311,421.60/x
  3. Step 3: Cross multiply
    20,223,727,831.20x = 30,335,591,746.80 × 12,387,311,421.60
  4. Step 4: Simplify right side
    20,223,727,831.20x = 375,776,422,126,130,364,416
  5. Step 5: Solve for x
    x = 375,776,422,126,130,364,416/20,223,727,831.20
  6. Step 6: Final answer
    x = 18,580,967,132.40

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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.