Home / 157,403,478.42-217,217,090.07-87,793,346.07

Finding the Fourth Proportional to 157,403,478.42, 217,217,090.07 and 87,793,346.07

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Solution

The fourth proportional to 157,403,478.42, 217,217,090.07 and 87,793,346.07 is: 121,154,979.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,403,478.42 : 217,217,090.07 = 87,793,346.07 : x
  2. Step 2: Convert to fraction form
    157,403,478.42/217,217,090.07 = 87,793,346.07/x
  3. Step 3: Cross multiply
    157,403,478.42x = 217,217,090.07 × 87,793,346.07
  4. Step 4: Simplify right side
    157,403,478.42x = 19,070,215,160,833,868
  5. Step 5: Solve for x
    x = 19,070,215,160,833,868/157,403,478.42
  6. Step 6: Final answer
    x = 121,154,979.24

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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.