Home / 20,980,423,874.46-28,955,938,089.60-13,357,034,605.56

Finding the Fourth Proportional to 20,980,423,874.46, 28,955,938,089.60 and 13,357,034,605.56

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Solution

The fourth proportional to 20,980,423,874.46, 28,955,938,089.60 and 13,357,034,605.56 is: 18,434,587,852.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,980,423,874.46 : 28,955,938,089.60 = 13,357,034,605.56 : x
  2. Step 2: Convert to fraction form
    20,980,423,874.46/28,955,938,089.60 = 13,357,034,605.56/x
  3. Step 3: Cross multiply
    20,980,423,874.46x = 28,955,938,089.60 × 13,357,034,605.56
  4. Step 4: Simplify right side
    20,980,423,874.46x = 386,765,467,099,240,071,168
  5. Step 5: Solve for x
    x = 386,765,467,099,240,071,168/20,980,423,874.46
  6. Step 6: Final answer
    x = 18,434,587,852.63

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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.