Home / 579,514,707.94-868,745,999.91-210,788,984.72

Finding the Fourth Proportional to 579,514,707.94, 868,745,999.91 and 210,788,984.72

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Solution

The fourth proportional to 579,514,707.94, 868,745,999.91 and 210,788,984.72 is: 315,992,130.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,514,707.94 : 868,745,999.91 = 210,788,984.72 : x
  2. Step 2: Convert to fraction form
    579,514,707.94/868,745,999.91 = 210,788,984.72/x
  3. Step 3: Cross multiply
    579,514,707.94x = 868,745,999.91 × 210,788,984.72
  4. Step 4: Simplify right side
    579,514,707.94x = 183,122,087,299,917,952
  5. Step 5: Solve for x
    x = 183,122,087,299,917,952/579,514,707.94
  6. Step 6: Final answer
    x = 315,992,130.64

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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.