Home / 128,836,008.24-177,788,366.74-70,098,901.76

Finding the Fourth Proportional to 128,836,008.24, 177,788,366.74 and 70,098,901.76

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Solution

The fourth proportional to 128,836,008.24, 177,788,366.74 and 70,098,901.76 is: 96,733,587.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,836,008.24 : 177,788,366.74 = 70,098,901.76 : x
  2. Step 2: Convert to fraction form
    128,836,008.24/177,788,366.74 = 70,098,901.76/x
  3. Step 3: Cross multiply
    128,836,008.24x = 177,788,366.74 × 70,098,901.76
  4. Step 4: Simplify right side
    128,836,008.24x = 12,462,769,254,178,114
  5. Step 5: Solve for x
    x = 12,462,769,254,178,114/128,836,008.24
  6. Step 6: Final answer
    x = 96,733,587.33

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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.