Home / 559,876,821.80-839,815,232.70-512,259,708.20

Finding the Fourth Proportional to 559,876,821.80, 839,815,232.70 and 512,259,708.20

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Solution

The fourth proportional to 559,876,821.80, 839,815,232.70 and 512,259,708.20 is: 768,389,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,876,821.80 : 839,815,232.70 = 512,259,708.20 : x
  2. Step 2: Convert to fraction form
    559,876,821.80/839,815,232.70 = 512,259,708.20/x
  3. Step 3: Cross multiply
    559,876,821.80x = 839,815,232.70 × 512,259,708.20
  4. Step 4: Simplify right side
    559,876,821.80x = 430,203,506,044,817,088
  5. Step 5: Solve for x
    x = 430,203,506,044,817,088/559,876,821.80
  6. Step 6: Final answer
    x = 768,389,562.30

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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.