Home / 72,463,911,670.38-108,659,501,433.87-42,220,824,079.68

Finding the Fourth Proportional to 72,463,911,670.38, 108,659,501,433.87 and 42,220,824,079.68

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Solution

The fourth proportional to 72,463,911,670.38, 108,659,501,433.87 and 42,220,824,079.68 is: 63,310,047,565.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,463,911,670.38 : 108,659,501,433.87 = 42,220,824,079.68 : x
  2. Step 2: Convert to fraction form
    72,463,911,670.38/108,659,501,433.87 = 42,220,824,079.68/x
  3. Step 3: Cross multiply
    72,463,911,670.38x = 108,659,501,433.87 × 42,220,824,079.68
  4. Step 4: Simplify right side
    72,463,911,670.38x = 4,587,693,694,625,161,674,752
  5. Step 5: Solve for x
    x = 4,587,693,694,625,161,674,752/72,463,911,670.38
  6. Step 6: Final answer
    x = 63,310,047,565.38

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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.