Home / 20,881,675,671.76-28,817,472,747.72-11,365,767,479.44

Finding the Fourth Proportional to 20,881,675,671.76, 28,817,472,747.72 and 11,365,767,479.44

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Solution

The fourth proportional to 20,881,675,671.76, 28,817,472,747.72 and 11,365,767,479.44 is: 15,685,172,959.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881,675,671.76 : 28,817,472,747.72 = 11,365,767,479.44 : x
  2. Step 2: Convert to fraction form
    20,881,675,671.76/28,817,472,747.72 = 11,365,767,479.44/x
  3. Step 3: Cross multiply
    20,881,675,671.76x = 28,817,472,747.72 × 11,365,767,479.44
  4. Step 4: Simplify right side
    20,881,675,671.76x = 327,532,694,595,684,466,688
  5. Step 5: Solve for x
    x = 327,532,694,595,684,466,688/20,881,675,671.76
  6. Step 6: Final answer
    x = 15,685,172,959.50

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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.