Home / 291,100,778,008.75-436,660,062,493.47-99,870,133,179.16

Finding the Fourth Proportional to 291,100,778,008.75, 436,660,062,493.47 and 99,870,133,179.16

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Solution

The fourth proportional to 291,100,778,008.75, 436,660,062,493.47 and 99,870,133,179.16 is: 149,808,251,608.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,100,778,008.75 : 436,660,062,493.47 = 99,870,133,179.16 : x
  2. Step 2: Convert to fraction form
    291,100,778,008.75/436,660,062,493.47 = 99,870,133,179.16/x
  3. Step 3: Cross multiply
    291,100,778,008.75x = 436,660,062,493.47 × 99,870,133,179.16
  4. Step 4: Simplify right side
    291,100,778,008.75x = 43,609,298,595,243,177,803,776
  5. Step 5: Solve for x
    x = 43,609,298,595,243,177,803,776/291,100,778,008.75
  6. Step 6: Final answer
    x = 149,808,251,608.08

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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.