Home / 310,236,037.47-428,125,627.28-171,009,124.29

Finding the Fourth Proportional to 310,236,037.47, 428,125,627.28 and 171,009,124.29

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Solution

The fourth proportional to 310,236,037.47, 428,125,627.28 and 171,009,124.29 is: 235,992,533.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,236,037.47 : 428,125,627.28 = 171,009,124.29 : x
  2. Step 2: Convert to fraction form
    310,236,037.47/428,125,627.28 = 171,009,124.29/x
  3. Step 3: Cross multiply
    310,236,037.47x = 428,125,627.28 × 171,009,124.29
  4. Step 4: Simplify right side
    310,236,037.47x = 73,213,388,606,404,688
  5. Step 5: Solve for x
    x = 73,213,388,606,404,688/310,236,037.47
  6. Step 6: Final answer
    x = 235,992,533.95

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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.