Home / 143,400,479,989.94-197,910,015,360.48-81,616,071,639.50

Finding the Fourth Proportional to 143,400,479,989.94, 197,910,015,360.48 and 81,616,071,639.50

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Solution

The fourth proportional to 143,400,479,989.94, 197,910,015,360.48 and 81,616,071,639.50 is: 112,640,055,270.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,400,479,989.94 : 197,910,015,360.48 = 81,616,071,639.50 : x
  2. Step 2: Convert to fraction form
    143,400,479,989.94/197,910,015,360.48 = 81,616,071,639.50/x
  3. Step 3: Cross multiply
    143,400,479,989.94x = 197,910,015,360.48 × 81,616,071,639.50
  4. Step 4: Simplify right side
    143,400,479,989.94x = 16,152,637,991,835,481,931,776
  5. Step 5: Solve for x
    x = 16,152,637,991,835,481,931,776/143,400,479,989.94
  6. Step 6: Final answer
    x = 112,640,055,270.17

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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.