Home / 15,045,211,068.47-20,761,157,153.43-8,857,307,811.90

Finding the Fourth Proportional to 15,045,211,068.47, 20,761,157,153.43 and 8,857,307,811.90

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Solution

The fourth proportional to 15,045,211,068.47, 20,761,157,153.43 and 8,857,307,811.90 is: 12,222,358,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,045,211,068.47 : 20,761,157,153.43 = 8,857,307,811.90 : x
  2. Step 2: Convert to fraction form
    15,045,211,068.47/20,761,157,153.43 = 8,857,307,811.90/x
  3. Step 3: Cross multiply
    15,045,211,068.47x = 20,761,157,153.43 × 8,857,307,811.90
  4. Step 4: Simplify right side
    15,045,211,068.47x = 183,887,959,439,159,099,392
  5. Step 5: Solve for x
    x = 183,887,959,439,159,099,392/15,045,211,068.47
  6. Step 6: Final answer
    x = 12,222,358,237.61

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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.