Home / 8,178,938,702.61-12,251,227,162.20-5,189,462,994.69

Finding the Fourth Proportional to 8,178,938,702.61, 12,251,227,162.20 and 5,189,462,994.69

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Solution

The fourth proportional to 8,178,938,702.61, 12,251,227,162.20 and 5,189,462,994.69 is: 7,773,293,370.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178,938,702.61 : 12,251,227,162.20 = 5,189,462,994.69 : x
  2. Step 2: Convert to fraction form
    8,178,938,702.61/12,251,227,162.20 = 5,189,462,994.69/x
  3. Step 3: Cross multiply
    8,178,938,702.61x = 12,251,227,162.20 × 5,189,462,994.69
  4. Step 4: Simplify right side
    8,178,938,702.61x = 63,577,289,997,777,879,040
  5. Step 5: Solve for x
    x = 63,577,289,997,777,879,040/8,178,938,702.61
  6. Step 6: Final answer
    x = 7,773,293,370.87

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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.