Home / 128,836,010.24-177,788,369.50-70,098,903.76

Finding the Fourth Proportional to 128,836,010.24, 177,788,369.50 and 70,098,903.76

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Solution

The fourth proportional to 128,836,010.24, 177,788,369.50 and 70,098,903.76 is: 96,733,590.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,836,010.24 : 177,788,369.50 = 70,098,903.76 : x
  2. Step 2: Convert to fraction form
    128,836,010.24/177,788,369.50 = 70,098,903.76/x
  3. Step 3: Cross multiply
    128,836,010.24x = 177,788,369.50 × 70,098,903.76
  4. Step 4: Simplify right side
    128,836,010.24x = 12,462,769,803,227,820
  5. Step 5: Solve for x
    x = 12,462,769,803,227,820/128,836,010.24
  6. Step 6: Final answer
    x = 96,733,590.09

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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.