Home / 12,898,672,447.61-17,790,998,702.45-8,609,723,320.08

Finding the Fourth Proportional to 12,898,672,447.61, 17,790,998,702.45 and 8,609,723,320.08

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Solution

The fourth proportional to 12,898,672,447.61, 17,790,998,702.45 and 8,609,723,320.08 is: 11,875,297,790.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898,672,447.61 : 17,790,998,702.45 = 8,609,723,320.08 : x
  2. Step 2: Convert to fraction form
    12,898,672,447.61/17,790,998,702.45 = 8,609,723,320.08/x
  3. Step 3: Cross multiply
    12,898,672,447.61x = 17,790,998,702.45 × 8,609,723,320.08
  4. Step 4: Simplify right side
    12,898,672,447.61x = 153,175,576,415,996,805,120
  5. Step 5: Solve for x
    x = 153,175,576,415,996,805,120/12,898,672,447.61
  6. Step 6: Final answer
    x = 11,875,297,790.38

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1.5x scale

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.