Home / 20,178,192,875.70-30,267,289,313.55-13,901,980,953.90

Finding the Fourth Proportional to 20,178,192,875.70, 30,267,289,313.55 and 13,901,980,953.90

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Solution

The fourth proportional to 20,178,192,875.70, 30,267,289,313.55 and 13,901,980,953.90 is: 20,852,971,430.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178,192,875.70 : 30,267,289,313.55 = 13,901,980,953.90 : x
  2. Step 2: Convert to fraction form
    20,178,192,875.70/30,267,289,313.55 = 13,901,980,953.90/x
  3. Step 3: Cross multiply
    20,178,192,875.70x = 30,267,289,313.55 × 13,901,980,953.90
  4. Step 4: Simplify right side
    20,178,192,875.70x = 420,775,279,563,153,080,320
  5. Step 5: Solve for x
    x = 420,775,279,563,153,080,320/20,178,192,875.70
  6. Step 6: Final answer
    x = 20,852,971,430.85

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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.