Home / 720,217,603.62-993,887,337.06-406,945,091.61

Finding the Fourth Proportional to 720,217,603.62, 993,887,337.06 and 406,945,091.61

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Solution

The fourth proportional to 720,217,603.62, 993,887,337.06 and 406,945,091.61 is: 561,576,905.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,217,603.62 : 993,887,337.06 = 406,945,091.61 : x
  2. Step 2: Convert to fraction form
    720,217,603.62/993,887,337.06 = 406,945,091.61/x
  3. Step 3: Cross multiply
    720,217,603.62x = 993,887,337.06 × 406,945,091.61
  4. Step 4: Simplify right side
    720,217,603.62x = 404,457,573,429,900,608
  5. Step 5: Solve for x
    x = 404,457,573,429,900,608/720,217,603.62
  6. Step 6: Final answer
    x = 561,576,905.92

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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.