Home / 128,817,892.55-177,764,641.39-70,079,052.89

Finding the Fourth Proportional to 128,817,892.55, 177,764,641.39 and 70,079,052.89

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Solution

The fourth proportional to 128,817,892.55, 177,764,641.39 and 70,079,052.89 is: 96,706,889.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,817,892.55 : 177,764,641.39 = 70,079,052.89 : x
  2. Step 2: Convert to fraction form
    128,817,892.55/177,764,641.39 = 70,079,052.89/x
  3. Step 3: Cross multiply
    128,817,892.55x = 177,764,641.39 × 70,079,052.89
  4. Step 4: Simplify right side
    128,817,892.55x = 12,457,577,705,941,692
  5. Step 5: Solve for x
    x = 12,457,577,705,941,692/128,817,892.55
  6. Step 6: Final answer
    x = 96,706,889.54

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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.