Home / 388,072,182.48-535,538,343.60-211,862,346

Finding the Fourth Proportional to 388,072,182.48, 535,538,343.60 and 211,862,346

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Solution

The fourth proportional to 388,072,182.48, 535,538,343.60 and 211,862,346 is: 292,369,345.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,072,182.48 : 535,538,343.60 = 211,862,346 : x
  2. Step 2: Convert to fraction form
    388,072,182.48/535,538,343.60 = 211,862,346/x
  3. Step 3: Cross multiply
    388,072,182.48x = 535,538,343.60 × 211,862,346
  4. Step 4: Simplify right side
    388,072,182.48x = 113,460,409,848,050,096
  5. Step 5: Solve for x
    x = 113,460,409,848,050,096/388,072,182.48
  6. Step 6: Final answer
    x = 292,369,345.11

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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.