Home / 12,940,028,430,465-17,857,800,563,275-7,165,913,462,409.20

Finding the Fourth Proportional to 12,940,028,430,465, 17,857,800,563,275 and 7,165,913,462,409.20

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Solution

The fourth proportional to 12,940,028,430,465, 17,857,800,563,275 and 7,165,913,462,409.20 is: 9,889,271,430,355.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940,028,430,465 : 17,857,800,563,275 = 7,165,913,462,409.20 : x
  2. Step 2: Convert to fraction form
    12,940,028,430,465/17,857,800,563,275 = 7,165,913,462,409.20/x
  3. Step 3: Cross multiply
    12,940,028,430,465x = 17,857,800,563,275 × 7,165,913,462,409.20
  4. Step 4: Simplify right side
    12,940,028,430,465x = 127,967,453,465,390,913,731,690,496
  5. Step 5: Solve for x
    x = 127,967,453,465,390,913,731,690,496/12,940,028,430,465
  6. Step 6: Final answer
    x = 9,889,271,430,355.92

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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.