Home / 20,370,860,541.32-28,111,788,898.85-11,338,424,806.57

Finding the Fourth Proportional to 20,370,860,541.32, 28,111,788,898.85 and 11,338,424,806.57

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Solution

The fourth proportional to 20,370,860,541.32, 28,111,788,898.85 and 11,338,424,806.57 is: 15,647,026,985.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370,860,541.32 : 28,111,788,898.85 = 11,338,424,806.57 : x
  2. Step 2: Convert to fraction form
    20,370,860,541.32/28,111,788,898.85 = 11,338,424,806.57/x
  3. Step 3: Cross multiply
    20,370,860,541.32x = 28,111,788,898.85 × 11,338,424,806.57
  4. Step 4: Simplify right side
    20,370,860,541.32x = 318,743,404,607,757,811,712
  5. Step 5: Solve for x
    x = 318,743,404,607,757,811,712/20,370,860,541.32
  6. Step 6: Final answer
    x = 15,647,026,985.50

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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.