Home / 142,938,186.76-197,246,669.70-80,208,434.44

Finding the Fourth Proportional to 142,938,186.76, 197,246,669.70 and 80,208,434.44

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Solution

The fourth proportional to 142,938,186.76, 197,246,669.70 and 80,208,434.44 is: 110,683,134.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,938,186.76 : 197,246,669.70 = 80,208,434.44 : x
  2. Step 2: Convert to fraction form
    142,938,186.76/197,246,669.70 = 80,208,434.44/x
  3. Step 3: Cross multiply
    142,938,186.76x = 197,246,669.70 × 80,208,434.44
  4. Step 4: Simplify right side
    142,938,186.76x = 15,820,846,575,140,784
  5. Step 5: Solve for x
    x = 15,820,846,575,140,784/142,938,186.76
  6. Step 6: Final answer
    x = 110,683,134.67

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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.