Home / 12,956,346,431.66-17,879,824,192.69-7,240,726,252.58

Finding the Fourth Proportional to 12,956,346,431.66, 17,879,824,192.69 and 7,240,726,252.58

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Solution

The fourth proportional to 12,956,346,431.66, 17,879,824,192.69 and 7,240,726,252.58 is: 9,992,239,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956,346,431.66 : 17,879,824,192.69 = 7,240,726,252.58 : x
  2. Step 2: Convert to fraction form
    12,956,346,431.66/17,879,824,192.69 = 7,240,726,252.58/x
  3. Step 3: Cross multiply
    12,956,346,431.66x = 17,879,824,192.69 × 7,240,726,252.58
  4. Step 4: Simplify right side
    12,956,346,431.66x = 129,462,912,423,566,966,784
  5. Step 5: Solve for x
    x = 129,462,912,423,566,966,784/12,956,346,431.66
  6. Step 6: Final answer
    x = 9,992,239,178.42

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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.