Home / 18,778,709,615.76-25,915,240,756.54-10,320,833,186.64

Finding the Fourth Proportional to 18,778,709,615.76, 25,915,240,756.54 and 10,320,833,186.64

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Solution

The fourth proportional to 18,778,709,615.76, 25,915,240,756.54 and 10,320,833,186.64 is: 14,243,091,368.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778,709,615.76 : 25,915,240,756.54 = 10,320,833,186.64 : x
  2. Step 2: Convert to fraction form
    18,778,709,615.76/25,915,240,756.54 = 10,320,833,186.64/x
  3. Step 3: Cross multiply
    18,778,709,615.76x = 25,915,240,756.54 × 10,320,833,186.64
  4. Step 4: Simplify right side
    18,778,709,615.76x = 267,466,876,839,863,517,184
  5. Step 5: Solve for x
    x = 267,466,876,839,863,517,184/18,778,709,615.76
  6. Step 6: Final answer
    x = 14,243,091,368.50

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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.