Home / 144,688,681.60-217,284,964.80-76,664,233.60

Finding the Fourth Proportional to 144,688,681.60, 217,284,964.80 and 76,664,233.60

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Solution

The fourth proportional to 144,688,681.60, 217,284,964.80 and 76,664,233.60 is: 115,129,843.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,688,681.60 : 217,284,964.80 = 76,664,233.60 : x
  2. Step 2: Convert to fraction form
    144,688,681.60/217,284,964.80 = 76,664,233.60/x
  3. Step 3: Cross multiply
    144,688,681.60x = 217,284,964.80 × 76,664,233.60
  4. Step 4: Simplify right side
    144,688,681.60x = 16,657,985,299,194,976
  5. Step 5: Solve for x
    x = 16,657,985,299,194,976/144,688,681.60
  6. Step 6: Final answer
    x = 115,129,843.71

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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.