Home / 128,539,090.80-192,808,636.20-37,662,679.80

Finding the Fourth Proportional to 128,539,090.80, 192,808,636.20 and 37,662,679.80

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Solution

The fourth proportional to 128,539,090.80, 192,808,636.20 and 37,662,679.80 is: 56,494,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,539,090.80 : 192,808,636.20 = 37,662,679.80 : x
  2. Step 2: Convert to fraction form
    128,539,090.80/192,808,636.20 = 37,662,679.80/x
  3. Step 3: Cross multiply
    128,539,090.80x = 192,808,636.20 × 37,662,679.80
  4. Step 4: Simplify right side
    128,539,090.80x = 7,261,689,927,875,288
  5. Step 5: Solve for x
    x = 7,261,689,927,875,288/128,539,090.80
  6. Step 6: Final answer
    x = 56,494,019.70

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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.