Home / 9,189,807,364.85-12,681,599,348.42-5,120,498,816.96

Finding the Fourth Proportional to 9,189,807,364.85, 12,681,599,348.42 and 5,120,498,816.96

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Solution

The fourth proportional to 9,189,807,364.85, 12,681,599,348.42 and 5,120,498,816.96 is: 7,066,101,810.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189,807,364.85 : 12,681,599,348.42 = 5,120,498,816.96 : x
  2. Step 2: Convert to fraction form
    9,189,807,364.85/12,681,599,348.42 = 5,120,498,816.96/x
  3. Step 3: Cross multiply
    9,189,807,364.85x = 12,681,599,348.42 × 5,120,498,816.96
  4. Step 4: Simplify right side
    9,189,807,364.85x = 64,936,114,460,751,421,440
  5. Step 5: Solve for x
    x = 64,936,114,460,751,421,440/9,189,807,364.85
  6. Step 6: Final answer
    x = 7,066,101,810.70

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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.