Home / 9,189,807,363.43-12,681,599,344.99-5,120,498,815.54

Finding the Fourth Proportional to 9,189,807,363.43, 12,681,599,344.99 and 5,120,498,815.54

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Solution

The fourth proportional to 9,189,807,363.43, 12,681,599,344.99 and 5,120,498,815.54 is: 7,066,101,807.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189,807,363.43 : 12,681,599,344.99 = 5,120,498,815.54 : x
  2. Step 2: Convert to fraction form
    9,189,807,363.43/12,681,599,344.99 = 5,120,498,815.54/x
  3. Step 3: Cross multiply
    9,189,807,363.43x = 12,681,599,344.99 × 5,120,498,815.54
  4. Step 4: Simplify right side
    9,189,807,363.43x = 64,936,114,425,174,130,688
  5. Step 5: Solve for x
    x = 64,936,114,425,174,130,688/9,189,807,363.43
  6. Step 6: Final answer
    x = 7,066,101,807.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.