Home / 149,120,466,397.46-205,786,235,758.47-80,531,872,911.98

Finding the Fourth Proportional to 149,120,466,397.46, 205,786,235,758.47 and 80,531,872,911.98

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Solution

The fourth proportional to 149,120,466,397.46, 205,786,235,758.47 and 80,531,872,911.98 is: 111,133,980,368.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,120,466,397.46 : 205,786,235,758.47 = 80,531,872,911.98 : x
  2. Step 2: Convert to fraction form
    149,120,466,397.46/205,786,235,758.47 = 80,531,872,911.98/x
  3. Step 3: Cross multiply
    149,120,466,397.46x = 205,786,235,758.47 × 80,531,872,911.98
  4. Step 4: Simplify right side
    149,120,466,397.46x = 16,572,350,985,135,858,909,184
  5. Step 5: Solve for x
    x = 16,572,350,985,135,858,909,184/149,120,466,397.46
  6. Step 6: Final answer
    x = 111,133,980,368.36

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1.5x scale

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.