Home / 386,709,637.52-533,670,300.36-210,508,995.92

Finding the Fourth Proportional to 386,709,637.52, 533,670,300.36 and 210,508,995.92

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Solution

The fourth proportional to 386,709,637.52, 533,670,300.36 and 210,508,995.92 is: 290,508,402.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,709,637.52 : 533,670,300.36 = 210,508,995.92 : x
  2. Step 2: Convert to fraction form
    386,709,637.52/533,670,300.36 = 210,508,995.92/x
  3. Step 3: Cross multiply
    386,709,637.52x = 533,670,300.36 × 210,508,995.92
  4. Step 4: Simplify right side
    386,709,637.52x = 112,342,399,081,108,416
  5. Step 5: Solve for x
    x = 112,342,399,081,108,416/386,709,637.52
  6. Step 6: Final answer
    x = 290,508,402.64

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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.