Home / 20,102,938,393.60-30,154,407,590.40-5,380,959,811.60

Finding the Fourth Proportional to 20,102,938,393.60, 30,154,407,590.40 and 5,380,959,811.60

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Solution

The fourth proportional to 20,102,938,393.60, 30,154,407,590.40 and 5,380,959,811.60 is: 8,071,439,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102,938,393.60 : 30,154,407,590.40 = 5,380,959,811.60 : x
  2. Step 2: Convert to fraction form
    20,102,938,393.60/30,154,407,590.40 = 5,380,959,811.60/x
  3. Step 3: Cross multiply
    20,102,938,393.60x = 30,154,407,590.40 × 5,380,959,811.60
  4. Step 4: Simplify right side
    20,102,938,393.60x = 162,259,655,386,548,404,224
  5. Step 5: Solve for x
    x = 162,259,655,386,548,404,224/20,102,938,393.60
  6. Step 6: Final answer
    x = 8,071,439,717.40

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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.