Home / 20,161,848,700.80-30,242,773,051.20-18,936,400,867.20

Finding the Fourth Proportional to 20,161,848,700.80, 30,242,773,051.20 and 18,936,400,867.20

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Solution

The fourth proportional to 20,161,848,700.80, 30,242,773,051.20 and 18,936,400,867.20 is: 28,404,601,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161,848,700.80 : 30,242,773,051.20 = 18,936,400,867.20 : x
  2. Step 2: Convert to fraction form
    20,161,848,700.80/30,242,773,051.20 = 18,936,400,867.20/x
  3. Step 3: Cross multiply
    20,161,848,700.80x = 30,242,773,051.20 × 18,936,400,867.20
  4. Step 4: Simplify right side
    20,161,848,700.80x = 572,689,273,833,276,506,112
  5. Step 5: Solve for x
    x = 572,689,273,833,276,506,112/20,161,848,700.80
  6. Step 6: Final answer
    x = 28,404,601,300.80

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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.