Home / 21,231,280,586.88-31,828,265,636.64-8,650,717,937.82

Finding the Fourth Proportional to 21,231,280,586.88, 31,828,265,636.64 and 8,650,717,937.82

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Solution

The fourth proportional to 21,231,280,586.88, 31,828,265,636.64 and 8,650,717,937.82 is: 12,968,475,798.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,231,280,586.88 : 31,828,265,636.64 = 8,650,717,937.82 : x
  2. Step 2: Convert to fraction form
    21,231,280,586.88/31,828,265,636.64 = 8,650,717,937.82/x
  3. Step 3: Cross multiply
    21,231,280,586.88x = 31,828,265,636.64 × 8,650,717,937.82
  4. Step 4: Simplify right side
    21,231,280,586.88x = 275,337,348,472,581,521,408
  5. Step 5: Solve for x
    x = 275,337,348,472,581,521,408/21,231,280,586.88
  6. Step 6: Final answer
    x = 12,968,475,798.99

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1.5x scale

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.