Home / 115,202,836-172,804,420.28-47,045,527.72

Finding the Fourth Proportional to 115,202,836, 172,804,420.28 and 47,045,527.72

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Solution

The fourth proportional to 115,202,836, 172,804,420.28 and 47,045,527.72 is: 70,568,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,202,836 : 172,804,420.28 = 47,045,527.72 : x
  2. Step 2: Convert to fraction form
    115,202,836/172,804,420.28 = 47,045,527.72/x
  3. Step 3: Cross multiply
    115,202,836x = 172,804,420.28 × 47,045,527.72
  4. Step 4: Simplify right side
    115,202,836x = 8,129,675,144,421,270
  5. Step 5: Solve for x
    x = 8,129,675,144,421,270/115,202,836
  6. Step 6: Final answer
    x = 70,568,359.48

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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.