Home / 145,394,690.16-200,645,327.16-79,314,980.88

Finding the Fourth Proportional to 145,394,690.16, 200,645,327.16 and 79,314,980.88

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Solution

The fourth proportional to 145,394,690.16, 200,645,327.16 and 79,314,980.88 is: 109,455,030.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,394,690.16 : 200,645,327.16 = 79,314,980.88 : x
  2. Step 2: Convert to fraction form
    145,394,690.16/200,645,327.16 = 79,314,980.88/x
  3. Step 3: Cross multiply
    145,394,690.16x = 200,645,327.16 × 79,314,980.88
  4. Step 4: Simplify right side
    145,394,690.16x = 15,914,180,287,356,744
  5. Step 5: Solve for x
    x = 15,914,180,287,356,744/145,394,690.16
  6. Step 6: Final answer
    x = 109,455,030.78

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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.