Home / 1,288,872,145.80-1,933,308,218.70-471,571,000.20

Finding the Fourth Proportional to 1,288,872,145.80, 1,933,308,218.70 and 471,571,000.20

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Solution

The fourth proportional to 1,288,872,145.80, 1,933,308,218.70 and 471,571,000.20 is: 707,356,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,872,145.80 : 1,933,308,218.70 = 471,571,000.20 : x
  2. Step 2: Convert to fraction form
    1,288,872,145.80/1,933,308,218.70 = 471,571,000.20/x
  3. Step 3: Cross multiply
    1,288,872,145.80x = 1,933,308,218.70 × 471,571,000.20
  4. Step 4: Simplify right side
    1,288,872,145.80x = 911,692,090,387,239,296
  5. Step 5: Solve for x
    x = 911,692,090,387,239,296/1,288,872,145.80
  6. Step 6: Final answer
    x = 707,356,500.30

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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.