Home / 142,684,390.08-196,905,466.08-77,494,294.08

Finding the Fourth Proportional to 142,684,390.08, 196,905,466.08 and 77,494,294.08

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Solution

The fourth proportional to 142,684,390.08, 196,905,466.08 and 77,494,294.08 is: 106,942,673.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,684,390.08 : 196,905,466.08 = 77,494,294.08 : x
  2. Step 2: Convert to fraction form
    142,684,390.08/196,905,466.08 = 77,494,294.08/x
  3. Step 3: Cross multiply
    142,684,390.08x = 196,905,466.08 × 77,494,294.08
  4. Step 4: Simplify right side
    142,684,390.08x = 15,259,050,094,362,986
  5. Step 5: Solve for x
    x = 15,259,050,094,362,986/142,684,390.08
  6. Step 6: Final answer
    x = 106,942,673.17

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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.