Home / 157,201,125.39-216,939,022.59-86,639,254.38

Finding the Fourth Proportional to 157,201,125.39, 216,939,022.59 and 86,639,254.38

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Solution

The fourth proportional to 157,201,125.39, 216,939,022.59 and 86,639,254.38 is: 119,562,980.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,201,125.39 : 216,939,022.59 = 86,639,254.38 : x
  2. Step 2: Convert to fraction form
    157,201,125.39/216,939,022.59 = 86,639,254.38/x
  3. Step 3: Cross multiply
    157,201,125.39x = 216,939,022.59 × 86,639,254.38
  4. Step 4: Simplify right side
    157,201,125.39x = 18,795,435,163,123,576
  5. Step 5: Solve for x
    x = 18,795,435,163,123,576/157,201,125.39
  6. Step 6: Final answer
    x = 119,562,980.97

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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.