Home / 343,390,841.50-515,256,629.61-136,124,871.16

Finding the Fourth Proportional to 343,390,841.50, 515,256,629.61 and 136,124,871.16

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Solution

The fourth proportional to 343,390,841.50, 515,256,629.61 and 136,124,871.16 is: 204,254,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,390,841.50 : 515,256,629.61 = 136,124,871.16 : x
  2. Step 2: Convert to fraction form
    343,390,841.50/515,256,629.61 = 136,124,871.16/x
  3. Step 3: Cross multiply
    343,390,841.50x = 515,256,629.61 × 136,124,871.16
  4. Step 4: Simplify right side
    343,390,841.50x = 70,139,242,319,997,088
  5. Step 5: Solve for x
    x = 70,139,242,319,997,088/343,390,841.50
  6. Step 6: Final answer
    x = 204,254,842.71

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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.