Home / 136,142,406.72-187,877,720.28-74,263,020.48

Finding the Fourth Proportional to 136,142,406.72, 187,877,720.28 and 74,263,020.48

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Solution

The fourth proportional to 136,142,406.72, 187,877,720.28 and 74,263,020.48 is: 102,483,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,142,406.72 : 187,877,720.28 = 74,263,020.48 : x
  2. Step 2: Convert to fraction form
    136,142,406.72/187,877,720.28 = 74,263,020.48/x
  3. Step 3: Cross multiply
    136,142,406.72x = 187,877,720.28 × 74,263,020.48
  4. Step 4: Simplify right side
    136,142,406.72x = 13,952,366,988,889,352
  5. Step 5: Solve for x
    x = 13,952,366,988,889,352/136,142,406.72
  6. Step 6: Final answer
    x = 102,483,622.30

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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.