Home / 149,883,941.10-206,776,501.92-100,340,274.90

Finding the Fourth Proportional to 149,883,941.10, 206,776,501.92 and 100,340,274.90

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Solution

The fourth proportional to 149,883,941.10, 206,776,501.92 and 100,340,274.90 is: 138,427,178.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,883,941.10 : 206,776,501.92 = 100,340,274.90 : x
  2. Step 2: Convert to fraction form
    149,883,941.10/206,776,501.92 = 100,340,274.90/x
  3. Step 3: Cross multiply
    149,883,941.10x = 206,776,501.92 × 100,340,274.90
  4. Step 4: Simplify right side
    149,883,941.10x = 20,748,011,045,513,176
  5. Step 5: Solve for x
    x = 20,748,011,045,513,176/149,883,941.10
  6. Step 6: Final answer
    x = 138,427,178.34

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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.