Home / 678,160,860.17-935,798,021.19-380,745,014.81

Finding the Fourth Proportional to 678,160,860.17, 935,798,021.19 and 380,745,014.81

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Solution

The fourth proportional to 678,160,860.17, 935,798,021.19 and 380,745,014.81 is: 525,392,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,160,860.17 : 935,798,021.19 = 380,745,014.81 : x
  2. Step 2: Convert to fraction form
    678,160,860.17/935,798,021.19 = 380,745,014.81/x
  3. Step 3: Cross multiply
    678,160,860.17x = 935,798,021.19 × 380,745,014.81
  4. Step 4: Simplify right side
    678,160,860.17x = 356,300,431,432,476,288
  5. Step 5: Solve for x
    x = 356,300,431,432,476,288/678,160,860.17
  6. Step 6: Final answer
    x = 525,392,207.60

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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.