Home / 128,884,493.88-177,864,507.66-70,151,406.02

Finding the Fourth Proportional to 128,884,493.88, 177,864,507.66 and 70,151,406.02

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Solution

The fourth proportional to 128,884,493.88, 177,864,507.66 and 70,151,406.02 is: 96,811,066.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,884,493.88 : 177,864,507.66 = 70,151,406.02 : x
  2. Step 2: Convert to fraction form
    128,884,493.88/177,864,507.66 = 70,151,406.02/x
  3. Step 3: Cross multiply
    128,884,493.88x = 177,864,507.66 × 70,151,406.02
  4. Step 4: Simplify right side
    128,884,493.88x = 12,477,445,293,404,060
  5. Step 5: Solve for x
    x = 12,477,445,293,404,060/128,884,493.88
  6. Step 6: Final answer
    x = 96,811,066.39

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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.