Home / 193,087,009.80-289,966,437.90-102,387,745.80

Finding the Fourth Proportional to 193,087,009.80, 289,966,437.90 and 102,387,745.80

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Solution

The fourth proportional to 193,087,009.80, 289,966,437.90 and 102,387,745.80 is: 153,759,747.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,087,009.80 : 289,966,437.90 = 102,387,745.80 : x
  2. Step 2: Convert to fraction form
    193,087,009.80/289,966,437.90 = 102,387,745.80/x
  3. Step 3: Cross multiply
    193,087,009.80x = 289,966,437.90 × 102,387,745.80
  4. Step 4: Simplify right side
    193,087,009.80x = 29,689,009,934,236,684
  5. Step 5: Solve for x
    x = 29,689,009,934,236,684/193,087,009.80
  6. Step 6: Final answer
    x = 153,759,747.82

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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.