Home / 649,315,749.19-896,031,728.10-351,951,606.87

Finding the Fourth Proportional to 649,315,749.19, 896,031,728.10 and 351,951,606.87

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Solution

The fourth proportional to 649,315,749.19, 896,031,728.10 and 351,951,606.87 is: 485,680,205.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,315,749.19 : 896,031,728.10 = 351,951,606.87 : x
  2. Step 2: Convert to fraction form
    649,315,749.19/896,031,728.10 = 351,951,606.87/x
  3. Step 3: Cross multiply
    649,315,749.19x = 896,031,728.10 × 351,951,606.87
  4. Step 4: Simplify right side
    649,315,749.19x = 315,359,806,507,937,792
  5. Step 5: Solve for x
    x = 315,359,806,507,937,792/649,315,749.19
  6. Step 6: Final answer
    x = 485,680,205.51

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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.