Home / 748,699,741.56-1,123,151,812.14-311,898,275.72

Finding the Fourth Proportional to 748,699,741.56, 1,123,151,812.14 and 311,898,275.72

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Solution

The fourth proportional to 748,699,741.56, 1,123,151,812.14 and 311,898,275.72 is: 467,889,988.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,699,741.56 : 1,123,151,812.14 = 311,898,275.72 : x
  2. Step 2: Convert to fraction form
    748,699,741.56/1,123,151,812.14 = 311,898,275.72/x
  3. Step 3: Cross multiply
    748,699,741.56x = 1,123,151,812.14 × 311,898,275.72
  4. Step 4: Simplify right side
    748,699,741.56x = 350,309,113,578,259,456
  5. Step 5: Solve for x
    x = 350,309,113,578,259,456/748,699,741.56
  6. Step 6: Final answer
    x = 467,889,988.65

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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.