Home / 12,788,638,809.05-17,653,755,628.43-7,968,385,341.83

Finding the Fourth Proportional to 12,788,638,809.05, 17,653,755,628.43 and 7,968,385,341.83

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Solution

The fourth proportional to 12,788,638,809.05, 17,653,755,628.43 and 7,968,385,341.83 is: 10,999,757,650.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,638,809.05 : 17,653,755,628.43 = 7,968,385,341.83 : x
  2. Step 2: Convert to fraction form
    12,788,638,809.05/17,653,755,628.43 = 7,968,385,341.83/x
  3. Step 3: Cross multiply
    12,788,638,809.05x = 17,653,755,628.43 × 7,968,385,341.83
  4. Step 4: Simplify right side
    12,788,638,809.05x = 140,671,927,577,830,473,728
  5. Step 5: Solve for x
    x = 140,671,927,577,830,473,728/12,788,638,809.05
  6. Step 6: Final answer
    x = 10,999,757,650.38

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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.