Home / 1,327,707,559.60-1,991,561,339.40-638,960,023.60

Finding the Fourth Proportional to 1,327,707,559.60, 1,991,561,339.40 and 638,960,023.60

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Solution

The fourth proportional to 1,327,707,559.60, 1,991,561,339.40 and 638,960,023.60 is: 958,440,035.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,707,559.60 : 1,991,561,339.40 = 638,960,023.60 : x
  2. Step 2: Convert to fraction form
    1,327,707,559.60/1,991,561,339.40 = 638,960,023.60/x
  3. Step 3: Cross multiply
    1,327,707,559.60x = 1,991,561,339.40 × 638,960,023.60
  4. Step 4: Simplify right side
    1,327,707,559.60x = 1,272,528,080,423,871,744
  5. Step 5: Solve for x
    x = 1,272,528,080,423,871,744/1,327,707,559.60
  6. Step 6: Final answer
    x = 958,440,035.40

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Double scale
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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.