Home / 310,105,031.49-427,954,071.87-170,884,761.30

Finding the Fourth Proportional to 310,105,031.49, 427,954,071.87 and 170,884,761.30

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Solution

The fourth proportional to 310,105,031.49, 427,954,071.87 and 170,884,761.30 is: 235,826,000.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,105,031.49 : 427,954,071.87 = 170,884,761.30 : x
  2. Step 2: Convert to fraction form
    310,105,031.49/427,954,071.87 = 170,884,761.30/x
  3. Step 3: Cross multiply
    310,105,031.49x = 427,954,071.87 × 170,884,761.30
  4. Step 4: Simplify right side
    310,105,031.49x = 73,130,829,418,868,000
  5. Step 5: Solve for x
    x = 73,130,829,418,868,000/310,105,031.49
  6. Step 6: Final answer
    x = 235,826,000.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.