Home / 85,671,592.77-128,580,768.45-85,026,732.69

Finding the Fourth Proportional to 85,671,592.77, 128,580,768.45 and 85,026,732.69

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Solution

The fourth proportional to 85,671,592.77, 128,580,768.45 and 85,026,732.69 is: 127,612,926.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,671,592.77 : 128,580,768.45 = 85,026,732.69 : x
  2. Step 2: Convert to fraction form
    85,671,592.77/128,580,768.45 = 85,026,732.69/x
  3. Step 3: Cross multiply
    85,671,592.77x = 128,580,768.45 × 85,026,732.69
  4. Step 4: Simplify right side
    85,671,592.77x = 10,932,802,628,072,936
  5. Step 5: Solve for x
    x = 10,932,802,628,072,936/85,671,592.77
  6. Step 6: Final answer
    x = 127,612,926.00

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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.