Home / 128,462,037.48-177,277,730.76-69,724,685.52

Finding the Fourth Proportional to 128,462,037.48, 177,277,730.76 and 69,724,685.52

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Solution

The fourth proportional to 128,462,037.48, 177,277,730.76 and 69,724,685.52 is: 96,220,130.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,462,037.48 : 177,277,730.76 = 69,724,685.52 : x
  2. Step 2: Convert to fraction form
    128,462,037.48/177,277,730.76 = 69,724,685.52/x
  3. Step 3: Cross multiply
    128,462,037.48x = 177,277,730.76 × 69,724,685.52
  4. Step 4: Simplify right side
    128,462,037.48x = 12,360,634,026,940,230
  5. Step 5: Solve for x
    x = 12,360,634,026,940,230/128,462,037.48
  6. Step 6: Final answer
    x = 96,220,130.63

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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.