Home / 76,505,414,009.40-105,611,329,896.57-49,421,896,850.16

Finding the Fourth Proportional to 76,505,414,009.40, 105,611,329,896.57 and 49,421,896,850.16

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Solution

The fourth proportional to 76,505,414,009.40, 105,611,329,896.57 and 49,421,896,850.16 is: 68,224,090,019.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,505,414,009.40 : 105,611,329,896.57 = 49,421,896,850.16 : x
  2. Step 2: Convert to fraction form
    76,505,414,009.40/105,611,329,896.57 = 49,421,896,850.16/x
  3. Step 3: Cross multiply
    76,505,414,009.40x = 105,611,329,896.57 × 49,421,896,850.16
  4. Step 4: Simplify right side
    76,505,414,009.40x = 5,219,512,252,356,502,749,184
  5. Step 5: Solve for x
    x = 5,219,512,252,356,502,749,184/76,505,414,009.40
  6. Step 6: Final answer
    x = 68,224,090,019.50

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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.