Home / 559,875,009.80-839,812,514.70-253,177,128.20

Finding the Fourth Proportional to 559,875,009.80, 839,812,514.70 and 253,177,128.20

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Solution

The fourth proportional to 559,875,009.80, 839,812,514.70 and 253,177,128.20 is: 379,765,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,875,009.80 : 839,812,514.70 = 253,177,128.20 : x
  2. Step 2: Convert to fraction form
    559,875,009.80/839,812,514.70 = 253,177,128.20/x
  3. Step 3: Cross multiply
    559,875,009.80x = 839,812,514.70 × 253,177,128.20
  4. Step 4: Simplify right side
    559,875,009.80x = 212,621,320,698,166,272
  5. Step 5: Solve for x
    x = 212,621,320,698,166,272/559,875,009.80
  6. Step 6: Final answer
    x = 379,765,692.30

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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.