Home / 85,744,004.40-128,616,006.60-51,731,780.40

Finding the Fourth Proportional to 85,744,004.40, 128,616,006.60 and 51,731,780.40

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Solution

The fourth proportional to 85,744,004.40, 128,616,006.60 and 51,731,780.40 is: 77,597,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,744,004.40 : 128,616,006.60 = 51,731,780.40 : x
  2. Step 2: Convert to fraction form
    85,744,004.40/128,616,006.60 = 51,731,780.40/x
  3. Step 3: Cross multiply
    85,744,004.40x = 128,616,006.60 × 51,731,780.40
  4. Step 4: Simplify right side
    85,744,004.40x = 6,653,535,009,356,150
  5. Step 5: Solve for x
    x = 6,653,535,009,356,150/85,744,004.40
  6. Step 6: Final answer
    x = 77,597,670.60

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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.