Home / 193,087,613.40-289,631,420.10-71,893,987.80

Finding the Fourth Proportional to 193,087,613.40, 289,631,420.10 and 71,893,987.80

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Solution

The fourth proportional to 193,087,613.40, 289,631,420.10 and 71,893,987.80 is: 107,840,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,087,613.40 : 289,631,420.10 = 71,893,987.80 : x
  2. Step 2: Convert to fraction form
    193,087,613.40/289,631,420.10 = 71,893,987.80/x
  3. Step 3: Cross multiply
    193,087,613.40x = 289,631,420.10 × 71,893,987.80
  4. Step 4: Simplify right side
    193,087,613.40x = 20,822,757,783,166,076
  5. Step 5: Solve for x
    x = 20,822,757,783,166,076/193,087,613.40
  6. Step 6: Final answer
    x = 107,840,981.70

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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.