Home / 12,788,638,817.04-17,653,755,639.48-7,968,385,349.82

Finding the Fourth Proportional to 12,788,638,817.04, 17,653,755,639.48 and 7,968,385,349.82

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Solution

The fourth proportional to 12,788,638,817.04, 17,653,755,639.48 and 7,968,385,349.82 is: 10,999,757,661.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788,638,817.04 : 17,653,755,639.48 = 7,968,385,349.82 : x
  2. Step 2: Convert to fraction form
    12,788,638,817.04/17,653,755,639.48 = 7,968,385,349.82/x
  3. Step 3: Cross multiply
    12,788,638,817.04x = 17,653,755,639.48 × 7,968,385,349.82
  4. Step 4: Simplify right side
    12,788,638,817.04x = 140,671,927,806,934,630,400
  5. Step 5: Solve for x
    x = 140,671,927,806,934,630,400/12,788,638,817.04
  6. Step 6: Final answer
    x = 10,999,757,661.43

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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.