Home / 20,156,413,808.80-30,239,155,676.40-11,871,036,042.40

Finding the Fourth Proportional to 20,156,413,808.80, 30,239,155,676.40 and 11,871,036,042.40

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Solution

The fourth proportional to 20,156,413,808.80, 30,239,155,676.40 and 11,871,036,042.40 is: 17,809,224,911.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156,413,808.80 : 30,239,155,676.40 = 11,871,036,042.40 : x
  2. Step 2: Convert to fraction form
    20,156,413,808.80/30,239,155,676.40 = 11,871,036,042.40/x
  3. Step 3: Cross multiply
    20,156,413,808.80x = 30,239,155,676.40 × 11,871,036,042.40
  4. Step 4: Simplify right side
    20,156,413,808.80x = 358,970,106,926,288,928,768
  5. Step 5: Solve for x
    x = 358,970,106,926,288,928,768/20,156,413,808.80
  6. Step 6: Final answer
    x = 17,809,224,911.31

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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.