Home / 1,578,946,712.69-2,178,860,139.63-864,344,025.29

Finding the Fourth Proportional to 1,578,946,712.69, 2,178,860,139.63 and 864,344,025.29

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Solution

The fourth proportional to 1,578,946,712.69, 2,178,860,139.63 and 864,344,025.29 is: 1,192,747,499.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,946,712.69 : 2,178,860,139.63 = 864,344,025.29 : x
  2. Step 2: Convert to fraction form
    1,578,946,712.69/2,178,860,139.63 = 864,344,025.29/x
  3. Step 3: Cross multiply
    1,578,946,712.69x = 2,178,860,139.63 × 864,344,025.29
  4. Step 4: Simplify right side
    1,578,946,712.69x = 1,883,284,743,637,172,992
  5. Step 5: Solve for x
    x = 1,883,284,743,637,172,992/1,578,946,712.69
  6. Step 6: Final answer
    x = 1,192,747,499.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.