Home / 859,248,097.20-1,288,872,145.80-314,380,666.80

Finding the Fourth Proportional to 859,248,097.20, 1,288,872,145.80 and 314,380,666.80

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Solution

The fourth proportional to 859,248,097.20, 1,288,872,145.80 and 314,380,666.80 is: 471,571,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,248,097.20 : 1,288,872,145.80 = 314,380,666.80 : x
  2. Step 2: Convert to fraction form
    859,248,097.20/1,288,872,145.80 = 314,380,666.80/x
  3. Step 3: Cross multiply
    859,248,097.20x = 1,288,872,145.80 × 314,380,666.80
  4. Step 4: Simplify right side
    859,248,097.20x = 405,196,484,616,550,848
  5. Step 5: Solve for x
    x = 405,196,484,616,550,848/859,248,097.20
  6. Step 6: Final answer
    x = 471,571,000.20

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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.