Home / 313,521,499.67-432,258,032.12-256,797,276.86

Finding the Fourth Proportional to 313,521,499.67, 432,258,032.12 and 256,797,276.86

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Solution

The fourth proportional to 313,521,499.67, 432,258,032.12 and 256,797,276.86 is: 354,051,271.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,521,499.67 : 432,258,032.12 = 256,797,276.86 : x
  2. Step 2: Convert to fraction form
    313,521,499.67/432,258,032.12 = 256,797,276.86/x
  3. Step 3: Cross multiply
    313,521,499.67x = 432,258,032.12 × 256,797,276.86
  4. Step 4: Simplify right side
    313,521,499.67x = 111,002,685,545,833,136
  5. Step 5: Solve for x
    x = 111,002,685,545,833,136/313,521,499.67
  6. Step 6: Final answer
    x = 354,051,271.33

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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.