Home / 19,931,288,417.64-27,492,217,917.12-12,783,380,395.50

Finding the Fourth Proportional to 19,931,288,417.64, 27,492,217,917.12 and 12,783,380,395.50

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Solution

The fourth proportional to 19,931,288,417.64, 27,492,217,917.12 and 12,783,380,395.50 is: 17,632,752,694.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931,288,417.64 : 27,492,217,917.12 = 12,783,380,395.50 : x
  2. Step 2: Convert to fraction form
    19,931,288,417.64/27,492,217,917.12 = 12,783,380,395.50/x
  3. Step 3: Cross multiply
    19,931,288,417.64x = 27,492,217,917.12 × 12,783,380,395.50
  4. Step 4: Simplify right side
    19,931,288,417.64x = 351,443,479,550,525,636,608
  5. Step 5: Solve for x
    x = 351,443,479,550,525,636,608/19,931,288,417.64
  6. Step 6: Final answer
    x = 17,632,752,694.48

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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.