Home / 78,028,937.70-107,679,924.80-46,666,981.84

Finding the Fourth Proportional to 78,028,937.70, 107,679,924.80 and 46,666,981.84

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Solution

The fourth proportional to 78,028,937.70, 107,679,924.80 and 46,666,981.84 is: 64,400,429.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,028,937.70 : 107,679,924.80 = 46,666,981.84 : x
  2. Step 2: Convert to fraction form
    78,028,937.70/107,679,924.80 = 46,666,981.84/x
  3. Step 3: Cross multiply
    78,028,937.70x = 107,679,924.80 × 46,666,981.84
  4. Step 4: Simplify right side
    78,028,937.70x = 5,025,097,095,174,166
  5. Step 5: Solve for x
    x = 5,025,097,095,174,166/78,028,937.70
  6. Step 6: Final answer
    x = 64,400,429.42

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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.