Home / 647,051,421.60-970,577,132.40-611,338,586.40

Finding the Fourth Proportional to 647,051,421.60, 970,577,132.40 and 611,338,586.40

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Solution

The fourth proportional to 647,051,421.60, 970,577,132.40 and 611,338,586.40 is: 917,007,879.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,051,421.60 : 970,577,132.40 = 611,338,586.40 : x
  2. Step 2: Convert to fraction form
    647,051,421.60/970,577,132.40 = 611,338,586.40/x
  3. Step 3: Cross multiply
    647,051,421.60x = 970,577,132.40 × 611,338,586.40
  4. Step 4: Simplify right side
    647,051,421.60x = 593,351,252,113,581,568
  5. Step 5: Solve for x
    x = 593,351,252,113,581,568/647,051,421.60
  6. Step 6: Final answer
    x = 917,007,879.60

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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.