Home / 1,516,470,187.20-2,274,705,280.80-861,168,004.80

Finding the Fourth Proportional to 1,516,470,187.20, 2,274,705,280.80 and 861,168,004.80

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Solution

The fourth proportional to 1,516,470,187.20, 2,274,705,280.80 and 861,168,004.80 is: 1,291,752,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516,470,187.20 : 2,274,705,280.80 = 861,168,004.80 : x
  2. Step 2: Convert to fraction form
    1,516,470,187.20/2,274,705,280.80 = 861,168,004.80/x
  3. Step 3: Cross multiply
    1,516,470,187.20x = 2,274,705,280.80 × 861,168,004.80
  4. Step 4: Simplify right side
    1,516,470,187.20x = 1,958,903,408,174,559,744
  5. Step 5: Solve for x
    x = 1,958,903,408,174,559,744/1,516,470,187.20
  6. Step 6: Final answer
    x = 1,291,752,007.20

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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.