Home / 1,578,946,686.11-2,178,860,102.94-864,343,998.68

Finding the Fourth Proportional to 1,578,946,686.11, 2,178,860,102.94 and 864,343,998.68

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Solution

The fourth proportional to 1,578,946,686.11, 2,178,860,102.94 and 864,343,998.68 is: 1,192,747,462.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,946,686.11 : 2,178,860,102.94 = 864,343,998.68 : x
  2. Step 2: Convert to fraction form
    1,578,946,686.11/2,178,860,102.94 = 864,343,998.68/x
  3. Step 3: Cross multiply
    1,578,946,686.11x = 2,178,860,102.94 × 864,343,998.68
  4. Step 4: Simplify right side
    1,578,946,686.11x = 1,883,284,653,934,894,848
  5. Step 5: Solve for x
    x = 1,883,284,653,934,894,848/1,578,946,686.11
  6. Step 6: Final answer
    x = 1,192,747,462.91

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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.