Home / 12,251,153,781.77-18,365,828,291.57-4,788,039,376.49

Finding the Fourth Proportional to 12,251,153,781.77, 18,365,828,291.57 and 4,788,039,376.49

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Solution

The fourth proportional to 12,251,153,781.77, 18,365,828,291.57 and 4,788,039,376.49 is: 7,177,798,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251,153,781.77 : 18,365,828,291.57 = 4,788,039,376.49 : x
  2. Step 2: Convert to fraction form
    12,251,153,781.77/18,365,828,291.57 = 4,788,039,376.49/x
  3. Step 3: Cross multiply
    12,251,153,781.77x = 18,365,828,291.57 × 4,788,039,376.49
  4. Step 4: Simplify right side
    12,251,153,781.77x = 87,936,309,041,891,213,312
  5. Step 5: Solve for x
    x = 87,936,309,041,891,213,312/12,251,153,781.77
  6. Step 6: Final answer
    x = 7,177,798,157.49

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1.5x scale

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.