Home / 142,115,755.52-213,141,747.36-65,365,045.76

Finding the Fourth Proportional to 142,115,755.52, 213,141,747.36 and 65,365,045.76

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Solution

The fourth proportional to 142,115,755.52, 213,141,747.36 and 65,365,045.76 is: 98,032,902.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,115,755.52 : 213,141,747.36 = 65,365,045.76 : x
  2. Step 2: Convert to fraction form
    142,115,755.52/213,141,747.36 = 65,365,045.76/x
  3. Step 3: Cross multiply
    142,115,755.52x = 213,141,747.36 × 65,365,045.76
  4. Step 4: Simplify right side
    142,115,755.52x = 13,932,020,069,552,760
  5. Step 5: Solve for x
    x = 13,932,020,069,552,760/142,115,755.52
  6. Step 6: Final answer
    x = 98,032,902.96

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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.