Home / 28,552,368,794.76-39,403,213,885.60-15,692,464,579.80

Finding the Fourth Proportional to 28,552,368,794.76, 39,403,213,885.60 and 15,692,464,579.80

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Solution

The fourth proportional to 28,552,368,794.76, 39,403,213,885.60 and 15,692,464,579.80 is: 21,656,120,466.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,552,368,794.76 : 39,403,213,885.60 = 15,692,464,579.80 : x
  2. Step 2: Convert to fraction form
    28,552,368,794.76/39,403,213,885.60 = 15,692,464,579.80/x
  3. Step 3: Cross multiply
    28,552,368,794.76x = 39,403,213,885.60 × 15,692,464,579.80
  4. Step 4: Simplify right side
    28,552,368,794.76x = 618,333,538,230,061,498,368
  5. Step 5: Solve for x
    x = 618,333,538,230,061,498,368/28,552,368,794.76
  6. Step 6: Final answer
    x = 21,656,120,466.74

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Double scale
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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.