Home / 156,047,007.58-215,344,866.54-86,436,872.50

Finding the Fourth Proportional to 156,047,007.58, 215,344,866.54 and 86,436,872.50

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Solution

The fourth proportional to 156,047,007.58, 215,344,866.54 and 86,436,872.50 is: 119,282,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,047,007.58 : 215,344,866.54 = 86,436,872.50 : x
  2. Step 2: Convert to fraction form
    156,047,007.58/215,344,866.54 = 86,436,872.50/x
  3. Step 3: Cross multiply
    156,047,007.58x = 215,344,866.54 × 86,436,872.50
  4. Step 4: Simplify right side
    156,047,007.58x = 18,613,736,772,647,496
  5. Step 5: Solve for x
    x = 18,613,736,772,647,496/156,047,007.58
  6. Step 6: Final answer
    x = 119,282,881.88

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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.