Home / 12,102,807,222.51-18,116,976,355.03-7,896,703,256.25

Finding the Fourth Proportional to 12,102,807,222.51, 18,116,976,355.03 and 7,896,703,256.25

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Solution

The fourth proportional to 12,102,807,222.51, 18,116,976,355.03 and 7,896,703,256.25 is: 11,820,760,551.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102,807,222.51 : 18,116,976,355.03 = 7,896,703,256.25 : x
  2. Step 2: Convert to fraction form
    12,102,807,222.51/18,116,976,355.03 = 7,896,703,256.25/x
  3. Step 3: Cross multiply
    12,102,807,222.51x = 18,116,976,355.03 × 7,896,703,256.25
  4. Step 4: Simplify right side
    12,102,807,222.51x = 143,064,386,176,169,639,936
  5. Step 5: Solve for x
    x = 143,064,386,176,169,639,936/12,102,807,222.51
  6. Step 6: Final answer
    x = 11,820,760,551.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.