Home / 690,965,031.21-1,036,447,546.80-230,903,200.51

Finding the Fourth Proportional to 690,965,031.21, 1,036,447,546.80 and 230,903,200.51

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Solution

The fourth proportional to 690,965,031.21, 1,036,447,546.80 and 230,903,200.51 is: 346,354,800.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,965,031.21 : 1,036,447,546.80 = 230,903,200.51 : x
  2. Step 2: Convert to fraction form
    690,965,031.21/1,036,447,546.80 = 230,903,200.51/x
  3. Step 3: Cross multiply
    690,965,031.21x = 1,036,447,546.80 × 230,903,200.51
  4. Step 4: Simplify right side
    690,965,031.21x = 239,319,055,716,857,984
  5. Step 5: Solve for x
    x = 239,319,055,716,857,984/690,965,031.21
  6. Step 6: Final answer
    x = 346,354,800.76

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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.