Home / 145,060,755.30-200,181,964.55-78,980,495.63

Finding the Fourth Proportional to 145,060,755.30, 200,181,964.55 and 78,980,495.63

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Solution

The fourth proportional to 145,060,755.30, 200,181,964.55 and 78,980,495.63 is: 108,992,061.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,060,755.30 : 200,181,964.55 = 78,980,495.63 : x
  2. Step 2: Convert to fraction form
    145,060,755.30/200,181,964.55 = 78,980,495.63/x
  3. Step 3: Cross multiply
    145,060,755.30x = 200,181,964.55 × 78,980,495.63
  4. Step 4: Simplify right side
    145,060,755.30x = 15,810,470,774,950,276
  5. Step 5: Solve for x
    x = 15,810,470,774,950,276/145,060,755.30
  6. Step 6: Final answer
    x = 108,992,061.58

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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.