Home / 128,894,774.40-193,275,676.80-38,006,553.60

Finding the Fourth Proportional to 128,894,774.40, 193,275,676.80 and 38,006,553.60

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Solution

The fourth proportional to 128,894,774.40, 193,275,676.80 and 38,006,553.60 is: 56,990,226.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,894,774.40 : 193,275,676.80 = 38,006,553.60 : x
  2. Step 2: Convert to fraction form
    128,894,774.40/193,275,676.80 = 38,006,553.60/x
  3. Step 3: Cross multiply
    128,894,774.40x = 193,275,676.80 × 38,006,553.60
  4. Step 4: Simplify right side
    128,894,774.40x = 7,345,742,369,875,477
  5. Step 5: Solve for x
    x = 7,345,742,369,875,477/128,894,774.40
  6. Step 6: Final answer
    x = 56,990,226.36

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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.