Home / 393,043,712.08-542,302,811.76-259,066,780.24

Finding the Fourth Proportional to 393,043,712.08, 542,302,811.76 and 259,066,780.24

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Solution

The fourth proportional to 393,043,712.08, 542,302,811.76 and 259,066,780.24 is: 357,447,884.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,043,712.08 : 542,302,811.76 = 259,066,780.24 : x
  2. Step 2: Convert to fraction form
    393,043,712.08/542,302,811.76 = 259,066,780.24/x
  3. Step 3: Cross multiply
    393,043,712.08x = 542,302,811.76 × 259,066,780.24
  4. Step 4: Simplify right side
    393,043,712.08x = 140,492,643,357,762,016
  5. Step 5: Solve for x
    x = 140,492,643,357,762,016/393,043,712.08
  6. Step 6: Final answer
    x = 357,447,884.40

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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.