Home / 395,139,258.65-545,291,750.94-216,527,502.18

Finding the Fourth Proportional to 395,139,258.65, 545,291,750.94 and 216,527,502.18

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Solution

The fourth proportional to 395,139,258.65, 545,291,750.94 and 216,527,502.18 is: 298,807,719.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,139,258.65 : 545,291,750.94 = 216,527,502.18 : x
  2. Step 2: Convert to fraction form
    395,139,258.65/545,291,750.94 = 216,527,502.18/x
  3. Step 3: Cross multiply
    395,139,258.65x = 545,291,750.94 × 216,527,502.18
  4. Step 4: Simplify right side
    395,139,258.65x = 118,070,660,791,629,728
  5. Step 5: Solve for x
    x = 118,070,660,791,629,728/395,139,258.65
  6. Step 6: Final answer
    x = 298,807,719.57

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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.