Home / 371,581,031.30-512,305,808.49-304,352,322.79

Finding the Fourth Proportional to 371,581,031.30, 512,305,808.49 and 304,352,322.79

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Solution

The fourth proportional to 371,581,031.30, 512,305,808.49 and 304,352,322.79 is: 419,616,314.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,581,031.30 : 512,305,808.49 = 304,352,322.79 : x
  2. Step 2: Convert to fraction form
    371,581,031.30/512,305,808.49 = 304,352,322.79/x
  3. Step 3: Cross multiply
    371,581,031.30x = 512,305,808.49 × 304,352,322.79
  4. Step 4: Simplify right side
    371,581,031.30x = 155,921,462,791,459,648
  5. Step 5: Solve for x
    x = 155,921,462,791,459,648/371,581,031.30
  6. Step 6: Final answer
    x = 419,616,314.23

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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.