Home / 310,765,357.42-428,856,235.23-171,536,145.46

Finding the Fourth Proportional to 310,765,357.42, 428,856,235.23 and 171,536,145.46

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Solution

The fourth proportional to 310,765,357.42, 428,856,235.23 and 171,536,145.46 is: 236,719,903.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,765,357.42 : 428,856,235.23 = 171,536,145.46 : x
  2. Step 2: Convert to fraction form
    310,765,357.42/428,856,235.23 = 171,536,145.46/x
  3. Step 3: Cross multiply
    310,765,357.42x = 428,856,235.23 × 171,536,145.46
  4. Step 4: Simplify right side
    310,765,357.42x = 73,564,345,547,841,264
  5. Step 5: Solve for x
    x = 73,564,345,547,841,264/310,765,357.42
  6. Step 6: Final answer
    x = 236,719,903.91

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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.