Home / 145,222,750,733.51-217,770,861,509.11-77,138,913,795.81

Finding the Fourth Proportional to 145,222,750,733.51, 217,770,861,509.11 and 77,138,913,795.81

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Solution

The fourth proportional to 145,222,750,733.51, 217,770,861,509.11 and 77,138,913,795.81 is: 115,674,766,029.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,222,750,733.51 : 217,770,861,509.11 = 77,138,913,795.81 : x
  2. Step 2: Convert to fraction form
    145,222,750,733.51/217,770,861,509.11 = 77,138,913,795.81/x
  3. Step 3: Cross multiply
    145,222,750,733.51x = 217,770,861,509.11 × 77,138,913,795.81
  4. Step 4: Simplify right side
    145,222,750,733.51x = 16,798,607,713,189,423,480,832
  5. Step 5: Solve for x
    x = 16,798,607,713,189,423,480,832/145,222,750,733.51
  6. Step 6: Final answer
    x = 115,674,766,029.02

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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.