Home / 67,871,419-93,661,770.90-36,931,055.20

Finding the Fourth Proportional to 67,871,419, 93,661,770.90 and 36,931,055.20

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Solution

The fourth proportional to 67,871,419, 93,661,770.90 and 36,931,055.20 is: 50,964,427.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,871,419 : 93,661,770.90 = 36,931,055.20 : x
  2. Step 2: Convert to fraction form
    67,871,419/93,661,770.90 = 36,931,055.20/x
  3. Step 3: Cross multiply
    67,871,419x = 93,661,770.90 × 36,931,055.20
  4. Step 4: Simplify right side
    67,871,419x = 3,459,028,031,237,654
  5. Step 5: Solve for x
    x = 3,459,028,031,237,654/67,871,419
  6. Step 6: Final answer
    x = 50,964,427.77

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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.