Home / 216,018,687.61-298,105,779.74-116,899,438.07

Finding the Fourth Proportional to 216,018,687.61, 298,105,779.74 and 116,899,438.07

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Solution

The fourth proportional to 216,018,687.61, 298,105,779.74 and 116,899,438.07 is: 161,321,219.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,018,687.61 : 298,105,779.74 = 116,899,438.07 : x
  2. Step 2: Convert to fraction form
    216,018,687.61/298,105,779.74 = 116,899,438.07/x
  3. Step 3: Cross multiply
    216,018,687.61x = 298,105,779.74 × 116,899,438.07
  4. Step 4: Simplify right side
    216,018,687.61x = 34,848,398,137,185,960
  5. Step 5: Solve for x
    x = 34,848,398,137,185,960/216,018,687.61
  6. Step 6: Final answer
    x = 161,321,219.58

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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.