Home / 13,358,776,788.70-18,441,388,461.02-7,718,901,691.48

Finding the Fourth Proportional to 13,358,776,788.70, 18,441,388,461.02 and 7,718,901,691.48

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Solution

The fourth proportional to 13,358,776,788.70, 18,441,388,461.02 and 7,718,901,691.48 is: 10,655,710,985.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358,776,788.70 : 18,441,388,461.02 = 7,718,901,691.48 : x
  2. Step 2: Convert to fraction form
    13,358,776,788.70/18,441,388,461.02 = 7,718,901,691.48/x
  3. Step 3: Cross multiply
    13,358,776,788.70x = 18,441,388,461.02 × 7,718,901,691.48
  4. Step 4: Simplify right side
    13,358,776,788.70x = 142,347,264,585,007,022,080
  5. Step 5: Solve for x
    x = 142,347,264,585,007,022,080/13,358,776,788.70
  6. Step 6: Final answer
    x = 10,655,710,985.86

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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.