Home / 81,505,506,962.76-122,314,106,300.10-28,446,540,077.28

Finding the Fourth Proportional to 81,505,506,962.76, 122,314,106,300.10 and 28,446,540,077.28

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Solution

The fourth proportional to 81,505,506,962.76, 122,314,106,300.10 and 28,446,540,077.28 is: 42,689,301,085.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,505,506,962.76 : 122,314,106,300.10 = 28,446,540,077.28 : x
  2. Step 2: Convert to fraction form
    81,505,506,962.76/122,314,106,300.10 = 28,446,540,077.28/x
  3. Step 3: Cross multiply
    81,505,506,962.76x = 122,314,106,300.10 × 28,446,540,077.28
  4. Step 4: Simplify right side
    81,505,506,962.76x = 3,479,413,126,882,480,619,520
  5. Step 5: Solve for x
    x = 3,479,413,126,882,480,619,520/81,505,506,962.76
  6. Step 6: Final answer
    x = 42,689,301,085.78

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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.