Home / 386,169,134.16-532,923,855-209,968,959.12

Finding the Fourth Proportional to 386,169,134.16, 532,923,855 and 209,968,959.12

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Solution

The fourth proportional to 386,169,134.16, 532,923,855 and 209,968,959.12 is: 289,762,845.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,169,134.16 : 532,923,855 = 209,968,959.12 : x
  2. Step 2: Convert to fraction form
    386,169,134.16/532,923,855 = 209,968,959.12/x
  3. Step 3: Cross multiply
    386,169,134.16x = 532,923,855 × 209,968,959.12
  4. Step 4: Simplify right side
    386,169,134.16x = 111,897,467,124,567,808
  5. Step 5: Solve for x
    x = 111,897,467,124,567,808/386,169,134.16
  6. Step 6: Final answer
    x = 289,762,845.41

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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.