Home / 142,724,928.48-196,944,605.44-79,143,669.08

Finding the Fourth Proportional to 142,724,928.48, 196,944,605.44 and 79,143,669.08

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Solution

The fourth proportional to 142,724,928.48, 196,944,605.44 and 79,143,669.08 is: 109,209,504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,724,928.48 : 196,944,605.44 = 79,143,669.08 : x
  2. Step 2: Convert to fraction form
    142,724,928.48/196,944,605.44 = 79,143,669.08/x
  3. Step 3: Cross multiply
    142,724,928.48x = 196,944,605.44 × 79,143,669.08
  4. Step 4: Simplify right side
    142,724,928.48x = 15,586,918,680,034,528
  5. Step 5: Solve for x
    x = 15,586,918,680,034,528/142,724,928.48
  6. Step 6: Final answer
    x = 109,209,504.23

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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.