Home / 1,428,468,575.60-1,971,501,782.64-871,875,063.56

Finding the Fourth Proportional to 1,428,468,575.60, 1,971,501,782.64 and 871,875,063.56

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Solution

The fourth proportional to 1,428,468,575.60, 1,971,501,782.64 and 871,875,063.56 is: 1,203,318,904.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,468,575.60 : 1,971,501,782.64 = 871,875,063.56 : x
  2. Step 2: Convert to fraction form
    1,428,468,575.60/1,971,501,782.64 = 871,875,063.56/x
  3. Step 3: Cross multiply
    1,428,468,575.60x = 1,971,501,782.64 × 871,875,063.56
  4. Step 4: Simplify right side
    1,428,468,575.60x = 1,718,903,242,047,903,232
  5. Step 5: Solve for x
    x = 1,718,903,242,047,903,232/1,428,468,575.60
  6. Step 6: Final answer
    x = 1,203,318,904.88

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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.