Home / 720,200,417.06-993,877,584.04-390,175,556.06

Finding the Fourth Proportional to 720,200,417.06, 993,877,584.04 and 390,175,556.06

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Solution

The fourth proportional to 720,200,417.06, 993,877,584.04 and 390,175,556.06 is: 538,442,813.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,200,417.06 : 993,877,584.04 = 390,175,556.06 : x
  2. Step 2: Convert to fraction form
    720,200,417.06/993,877,584.04 = 390,175,556.06/x
  3. Step 3: Cross multiply
    720,200,417.06x = 993,877,584.04 × 390,175,556.06
  4. Step 4: Simplify right side
    720,200,417.06x = 387,786,739,008,376,384
  5. Step 5: Solve for x
    x = 387,786,739,008,376,384/720,200,417.06
  6. Step 6: Final answer
    x = 538,442,813.73

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1.5x scale

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.