Home / 390,111,103.84-585,264,308.28-113,762,350.12

Finding the Fourth Proportional to 390,111,103.84, 585,264,308.28 and 113,762,350.12

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Solution

The fourth proportional to 390,111,103.84, 585,264,308.28 and 113,762,350.12 is: 170,672,002.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,111,103.84 : 585,264,308.28 = 113,762,350.12 : x
  2. Step 2: Convert to fraction form
    390,111,103.84/585,264,308.28 = 113,762,350.12/x
  3. Step 3: Cross multiply
    390,111,103.84x = 585,264,308.28 × 113,762,350.12
  4. Step 4: Simplify right side
    390,111,103.84x = 66,581,043,151,288,976
  5. Step 5: Solve for x
    x = 66,581,043,151,288,976/390,111,103.84
  6. Step 6: Final answer
    x = 170,672,002.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.