Home / 128,736,005.40-193,104,008.10-127,541,611.80

Finding the Fourth Proportional to 128,736,005.40, 193,104,008.10 and 127,541,611.80

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Solution

The fourth proportional to 128,736,005.40, 193,104,008.10 and 127,541,611.80 is: 191,312,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,736,005.40 : 193,104,008.10 = 127,541,611.80 : x
  2. Step 2: Convert to fraction form
    128,736,005.40/193,104,008.10 = 127,541,611.80/x
  3. Step 3: Cross multiply
    128,736,005.40x = 193,104,008.10 × 127,541,611.80
  4. Step 4: Simplify right side
    128,736,005.40x = 24,628,796,438,114,256
  5. Step 5: Solve for x
    x = 24,628,796,438,114,256/128,736,005.40
  6. Step 6: Final answer
    x = 191,312,417.70

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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.