Home / 136,578,747,832.96-188,498,386,931.52-78,696,041,757.12

Finding the Fourth Proportional to 136,578,747,832.96, 188,498,386,931.52 and 78,696,041,757.12

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Solution

The fourth proportional to 136,578,747,832.96, 188,498,386,931.52 and 78,696,041,757.12 is: 108,611,897,271.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,578,747,832.96 : 188,498,386,931.52 = 78,696,041,757.12 : x
  2. Step 2: Convert to fraction form
    136,578,747,832.96/188,498,386,931.52 = 78,696,041,757.12/x
  3. Step 3: Cross multiply
    136,578,747,832.96x = 188,498,386,931.52 × 78,696,041,757.12
  4. Step 4: Simplify right side
    136,578,747,832.96x = 14,834,076,929,112,659,722,240
  5. Step 5: Solve for x
    x = 14,834,076,929,112,659,722,240/136,578,747,832.96
  6. Step 6: Final answer
    x = 108,611,897,271.57

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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.