Home / 693,343,643.20-1,040,280,885.60-682,461,390.40

Finding the Fourth Proportional to 693,343,643.20, 1,040,280,885.60 and 682,461,390.40

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Solution

The fourth proportional to 693,343,643.20, 1,040,280,885.60 and 682,461,390.40 is: 1,023,953,340.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,343,643.20 : 1,040,280,885.60 = 682,461,390.40 : x
  2. Step 2: Convert to fraction form
    693,343,643.20/1,040,280,885.60 = 682,461,390.40/x
  3. Step 3: Cross multiply
    693,343,643.20x = 1,040,280,885.60 × 682,461,390.40
  4. Step 4: Simplify right side
    693,343,643.20x = 709,951,539,593,119,360
  5. Step 5: Solve for x
    x = 709,951,539,593,119,360/693,343,643.20
  6. Step 6: Final answer
    x = 1,023,953,340.53

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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.