Home / 145,464,409.92-200,745,141.48-79,389,146.16

Finding the Fourth Proportional to 145,464,409.92, 200,745,141.48 and 79,389,146.16

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Solution

The fourth proportional to 145,464,409.92, 200,745,141.48 and 79,389,146.16 is: 109,559,344.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,464,409.92 : 200,745,141.48 = 79,389,146.16 : x
  2. Step 2: Convert to fraction form
    145,464,409.92/200,745,141.48 = 79,389,146.16/x
  3. Step 3: Cross multiply
    145,464,409.92x = 200,745,141.48 × 79,389,146.16
  4. Step 4: Simplify right side
    145,464,409.92x = 15,936,985,377,865,598
  5. Step 5: Solve for x
    x = 15,936,985,377,865,598/145,464,409.92
  6. Step 6: Final answer
    x = 109,559,344.36

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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.