Home / 128,597,421.60-192,917,386.80-59,579,200.80

Finding the Fourth Proportional to 128,597,421.60, 192,917,386.80 and 59,579,200.80

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Solution

The fourth proportional to 128,597,421.60, 192,917,386.80 and 59,579,200.80 is: 89,378,648.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,597,421.60 : 192,917,386.80 = 59,579,200.80 : x
  2. Step 2: Convert to fraction form
    128,597,421.60/192,917,386.80 = 59,579,200.80/x
  3. Step 3: Cross multiply
    128,597,421.60x = 192,917,386.80 × 59,579,200.80
  4. Step 4: Simplify right side
    128,597,421.60x = 11,493,863,725,968,470
  5. Step 5: Solve for x
    x = 11,493,863,725,968,470/128,597,421.60
  6. Step 6: Final answer
    x = 89,378,648.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.