Home / 20,154,145,444.56-27,812,732,686.20-11,243,474,207.28

Finding the Fourth Proportional to 20,154,145,444.56, 27,812,732,686.20 and 11,243,474,207.28

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Solution

The fourth proportional to 20,154,145,444.56, 27,812,732,686.20 and 11,243,474,207.28 is: 15,516,001,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154,145,444.56 : 27,812,732,686.20 = 11,243,474,207.28 : x
  2. Step 2: Convert to fraction form
    20,154,145,444.56/27,812,732,686.20 = 11,243,474,207.28/x
  3. Step 3: Cross multiply
    20,154,145,444.56x = 27,812,732,686.20 × 11,243,474,207.28
  4. Step 4: Simplify right side
    20,154,145,444.56x = 312,711,742,591,263,113,216
  5. Step 5: Solve for x
    x = 312,711,742,591,263,113,216/20,154,145,444.56
  6. Step 6: Final answer
    x = 15,516,001,085.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.