Home / 931,392,115.40-1,396,892,217.90-470,897,395.40

Finding the Fourth Proportional to 931,392,115.40, 1,396,892,217.90 and 470,897,395.40

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Solution

The fourth proportional to 931,392,115.40, 1,396,892,217.90 and 470,897,395.40 is: 706,247,021.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,392,115.40 : 1,396,892,217.90 = 470,897,395.40 : x
  2. Step 2: Convert to fraction form
    931,392,115.40/1,396,892,217.90 = 470,897,395.40/x
  3. Step 3: Cross multiply
    931,392,115.40x = 1,396,892,217.90 × 470,897,395.40
  4. Step 4: Simplify right side
    931,392,115.40x = 657,792,907,063,639,296
  5. Step 5: Solve for x
    x = 657,792,907,063,639,296/931,392,115.40
  6. Step 6: Final answer
    x = 706,247,021.19

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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.