Home / 77,081,983.96-106,379,865-42,281,400.40

Finding the Fourth Proportional to 77,081,983.96, 106,379,865 and 42,281,400.40

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Solution

The fourth proportional to 77,081,983.96, 106,379,865 and 42,281,400.40 is: 58,352,022.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,081,983.96 : 106,379,865 = 42,281,400.40 : x
  2. Step 2: Convert to fraction form
    77,081,983.96/106,379,865 = 42,281,400.40/x
  3. Step 3: Cross multiply
    77,081,983.96x = 106,379,865 × 42,281,400.40
  4. Step 4: Simplify right side
    77,081,983.96x = 4,497,889,666,562,946
  5. Step 5: Solve for x
    x = 4,497,889,666,562,946/77,081,983.96
  6. Step 6: Final answer
    x = 58,352,022.55

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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.