Home / 20,156,413,816.80-30,239,155,688.40-11,871,036,050.40

Finding the Fourth Proportional to 20,156,413,816.80, 30,239,155,688.40 and 11,871,036,050.40

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Solution

The fourth proportional to 20,156,413,816.80, 30,239,155,688.40 and 11,871,036,050.40 is: 17,809,224,923.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156,413,816.80 : 30,239,155,688.40 = 11,871,036,050.40 : x
  2. Step 2: Convert to fraction form
    20,156,413,816.80/30,239,155,688.40 = 11,871,036,050.40/x
  3. Step 3: Cross multiply
    20,156,413,816.80x = 30,239,155,688.40 × 11,871,036,050.40
  4. Step 4: Simplify right side
    20,156,413,816.80x = 358,970,107,310,654,619,648
  5. Step 5: Solve for x
    x = 358,970,107,310,654,619,648/20,156,413,816.80
  6. Step 6: Final answer
    x = 17,809,224,923.31

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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.