Home / 1,000,195,891.25-1,499,712,289.98-378,459,152.20

Finding the Fourth Proportional to 1,000,195,891.25, 1,499,712,289.98 and 378,459,152.20

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Solution

The fourth proportional to 1,000,195,891.25, 1,499,712,289.98 and 378,459,152.20 is: 567,468,679.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,195,891.25 : 1,499,712,289.98 = 378,459,152.20 : x
  2. Step 2: Convert to fraction form
    1,000,195,891.25/1,499,712,289.98 = 378,459,152.20/x
  3. Step 3: Cross multiply
    1,000,195,891.25x = 1,499,712,289.98 × 378,459,152.20
  4. Step 4: Simplify right side
    1,000,195,891.25x = 567,579,841,810,187,904
  5. Step 5: Solve for x
    x = 567,579,841,810,187,904/1,000,195,891.25
  6. Step 6: Final answer
    x = 567,468,679.66

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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.