Home / 1,187,241,159.80-1,780,027,282.02-522,939,907.64

Finding the Fourth Proportional to 1,187,241,159.80, 1,780,027,282.02 and 522,939,907.64

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Solution

The fourth proportional to 1,187,241,159.80, 1,780,027,282.02 and 522,939,907.64 is: 784,042,310.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,241,159.80 : 1,780,027,282.02 = 522,939,907.64 : x
  2. Step 2: Convert to fraction form
    1,187,241,159.80/1,780,027,282.02 = 522,939,907.64/x
  3. Step 3: Cross multiply
    1,187,241,159.80x = 1,780,027,282.02 × 522,939,907.64
  4. Step 4: Simplify right side
    1,187,241,159.80x = 930,847,302,456,219,008
  5. Step 5: Solve for x
    x = 930,847,302,456,219,008/1,187,241,159.80
  6. Step 6: Final answer
    x = 784,042,310.84

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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.