Home / 142,558,168.32-196,730,220.96-77,368,072.32

Finding the Fourth Proportional to 142,558,168.32, 196,730,220.96 and 77,368,072.32

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Solution

The fourth proportional to 142,558,168.32, 196,730,220.96 and 77,368,072.32 is: 106,767,911.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,558,168.32 : 196,730,220.96 = 77,368,072.32 : x
  2. Step 2: Convert to fraction form
    142,558,168.32/196,730,220.96 = 77,368,072.32/x
  3. Step 3: Cross multiply
    142,558,168.32x = 196,730,220.96 × 77,368,072.32
  4. Step 4: Simplify right side
    142,558,168.32x = 15,220,637,962,762,860
  5. Step 5: Solve for x
    x = 15,220,637,962,762,860/142,558,168.32
  6. Step 6: Final answer
    x = 106,767,911.95

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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.