Home / 81,505,506,933.62-122,314,106,256.95-28,446,540,048.20

Finding the Fourth Proportional to 81,505,506,933.62, 122,314,106,256.95 and 28,446,540,048.20

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Solution

The fourth proportional to 81,505,506,933.62, 122,314,106,256.95 and 28,446,540,048.20 is: 42,689,301,042.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,505,506,933.62 : 122,314,106,256.95 = 28,446,540,048.20 : x
  2. Step 2: Convert to fraction form
    81,505,506,933.62/122,314,106,256.95 = 28,446,540,048.20/x
  3. Step 3: Cross multiply
    81,505,506,933.62x = 122,314,106,256.95 × 28,446,540,048.20
  4. Step 4: Simplify right side
    81,505,506,933.62x = 3,479,413,122,098,363,105,280
  5. Step 5: Solve for x
    x = 3,479,413,122,098,363,105,280/81,505,506,933.62
  6. Step 6: Final answer
    x = 42,689,301,042.35

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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.