Home / 138,759,066,028.26-191,550,254,808.90-87,393,115,549.71

Finding the Fourth Proportional to 138,759,066,028.26, 191,550,254,808.90 and 87,393,115,549.71

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Solution

The fourth proportional to 138,759,066,028.26, 191,550,254,808.90 and 87,393,115,549.71 is: 120,642,016,635.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,759,066,028.26 : 191,550,254,808.90 = 87,393,115,549.71 : x
  2. Step 2: Convert to fraction form
    138,759,066,028.26/191,550,254,808.90 = 87,393,115,549.71/x
  3. Step 3: Cross multiply
    138,759,066,028.26x = 191,550,254,808.90 × 87,393,115,549.71
  4. Step 4: Simplify right side
    138,759,066,028.26x = 16,740,173,552,090,592,837,632
  5. Step 5: Solve for x
    x = 16,740,173,552,090,592,837,632/138,759,066,028.26
  6. Step 6: Final answer
    x = 120,642,016,635.38

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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.