Home / 386,046,764.28-532,748,101.14-209,835,174.24

Finding the Fourth Proportional to 386,046,764.28, 532,748,101.14 and 209,835,174.24

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Solution

The fourth proportional to 386,046,764.28, 532,748,101.14 and 209,835,174.24 is: 289,574,478.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,046,764.28 : 532,748,101.14 = 209,835,174.24 : x
  2. Step 2: Convert to fraction form
    386,046,764.28/532,748,101.14 = 209,835,174.24/x
  3. Step 3: Cross multiply
    386,046,764.28x = 532,748,101.14 × 209,835,174.24
  4. Step 4: Simplify right side
    386,046,764.28x = 111,789,290,628,741,040
  5. Step 5: Solve for x
    x = 111,789,290,628,741,040/386,046,764.28
  6. Step 6: Final answer
    x = 289,574,478.98

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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.