Home / 20,308,005,780.96-30,445,987,875.84-12,830,828,273.40

Finding the Fourth Proportional to 20,308,005,780.96, 30,445,987,875.84 and 12,830,828,273.40

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Solution

The fourth proportional to 20,308,005,780.96, 30,445,987,875.84 and 12,830,828,273.40 is: 19,236,120,289.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308,005,780.96 : 30,445,987,875.84 = 12,830,828,273.40 : x
  2. Step 2: Convert to fraction form
    20,308,005,780.96/30,445,987,875.84 = 12,830,828,273.40/x
  3. Step 3: Cross multiply
    20,308,005,780.96x = 30,445,987,875.84 × 12,830,828,273.40
  4. Step 4: Simplify right side
    20,308,005,780.96x = 390,647,242,048,921,468,928
  5. Step 5: Solve for x
    x = 390,647,242,048,921,468,928/20,308,005,780.96
  6. Step 6: Final answer
    x = 19,236,120,289.82

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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.