Home / 346,389,365.57-478,013,514.95-187,615,538.46

Finding the Fourth Proportional to 346,389,365.57, 478,013,514.95 and 187,615,538.46

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Solution

The fourth proportional to 346,389,365.57, 478,013,514.95 and 187,615,538.46 is: 258,907,379.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,389,365.57 : 478,013,514.95 = 187,615,538.46 : x
  2. Step 2: Convert to fraction form
    346,389,365.57/478,013,514.95 = 187,615,538.46/x
  3. Step 3: Cross multiply
    346,389,365.57x = 478,013,514.95 × 187,615,538.46
  4. Step 4: Simplify right side
    346,389,365.57x = 89,682,762,999,520,160
  5. Step 5: Solve for x
    x = 89,682,762,999,520,160/346,389,365.57
  6. Step 6: Final answer
    x = 258,907,379.71

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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.