Home / 128,462,039.48-177,277,733.52-69,724,687.52

Finding the Fourth Proportional to 128,462,039.48, 177,277,733.52 and 69,724,687.52

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Solution

The fourth proportional to 128,462,039.48, 177,277,733.52 and 69,724,687.52 is: 96,220,133.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,462,039.48 : 177,277,733.52 = 69,724,687.52 : x
  2. Step 2: Convert to fraction form
    128,462,039.48/177,277,733.52 = 69,724,687.52/x
  3. Step 3: Cross multiply
    128,462,039.48x = 177,277,733.52 × 69,724,687.52
  4. Step 4: Simplify right side
    128,462,039.48x = 12,360,634,573,935,830
  5. Step 5: Solve for x
    x = 12,360,634,573,935,830/128,462,039.48
  6. Step 6: Final answer
    x = 96,220,133.39

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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.