Home / 20,421,125,261.30-28,181,152,914.80-11,033,751,437.30

Finding the Fourth Proportional to 20,421,125,261.30, 28,181,152,914.80 and 11,033,751,437.30

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Solution

The fourth proportional to 20,421,125,261.30, 28,181,152,914.80 and 11,033,751,437.30 is: 15,226,577,012.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421,125,261.30 : 28,181,152,914.80 = 11,033,751,437.30 : x
  2. Step 2: Convert to fraction form
    20,421,125,261.30/28,181,152,914.80 = 11,033,751,437.30/x
  3. Step 3: Cross multiply
    20,421,125,261.30x = 28,181,152,914.80 × 11,033,751,437.30
  4. Step 4: Simplify right side
    20,421,125,261.30x = 310,943,836,478,249,500,672
  5. Step 5: Solve for x
    x = 310,943,836,478,249,500,672/20,421,125,261.30
  6. Step 6: Final answer
    x = 15,226,577,012.76

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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.