Home / 81,686,723,237.34-122,365,988,222.04-40,675,691,140.74

Finding the Fourth Proportional to 81,686,723,237.34, 122,365,988,222.04 and 40,675,691,140.74

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Solution

The fourth proportional to 81,686,723,237.34, 122,365,988,222.04 and 40,675,691,140.74 is: 60,931,825,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,686,723,237.34 : 122,365,988,222.04 = 40,675,691,140.74 : x
  2. Step 2: Convert to fraction form
    81,686,723,237.34/122,365,988,222.04 = 40,675,691,140.74/x
  3. Step 3: Cross multiply
    81,686,723,237.34x = 122,365,988,222.04 × 40,675,691,140.74
  4. Step 4: Simplify right side
    81,686,723,237.34x = 4,977,321,143,051,126,571,008
  5. Step 5: Solve for x
    x = 4,977,321,143,051,126,571,008/81,686,723,237.34
  6. Step 6: Final answer
    x = 60,931,825,219.50

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.