Home / 77,656,787,421.48-107,240,380,262.82-73,426,095,161.64

Finding the Fourth Proportional to 77,656,787,421.48, 107,240,380,262.82 and 73,426,095,161.64

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Solution

The fourth proportional to 77,656,787,421.48, 107,240,380,262.82 and 73,426,095,161.64 is: 101,397,992,729.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,656,787,421.48 : 107,240,380,262.82 = 73,426,095,161.64 : x
  2. Step 2: Convert to fraction form
    77,656,787,421.48/107,240,380,262.82 = 73,426,095,161.64/x
  3. Step 3: Cross multiply
    77,656,787,421.48x = 107,240,380,262.82 × 73,426,095,161.64
  4. Step 4: Simplify right side
    77,656,787,421.48x = 7,874,242,366,348,281,774,080
  5. Step 5: Solve for x
    x = 7,874,242,366,348,281,774,080/77,656,787,421.48
  6. Step 6: Final answer
    x = 101,397,992,729.36

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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.