Home / 81,607,664.40-122,411,496.60-55,779,631.80

Finding the Fourth Proportional to 81,607,664.40, 122,411,496.60 and 55,779,631.80

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Solution

The fourth proportional to 81,607,664.40, 122,411,496.60 and 55,779,631.80 is: 83,669,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,607,664.40 : 122,411,496.60 = 55,779,631.80 : x
  2. Step 2: Convert to fraction form
    81,607,664.40/122,411,496.60 = 55,779,631.80/x
  3. Step 3: Cross multiply
    81,607,664.40x = 122,411,496.60 × 55,779,631.80
  4. Step 4: Simplify right side
    81,607,664.40x = 6,828,068,208,434,951
  5. Step 5: Solve for x
    x = 6,828,068,208,434,951/81,607,664.40
  6. Step 6: Final answer
    x = 83,669,447.70

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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.