Home / 121,338,086.40-182,007,129.60-53,313,638.40

Finding the Fourth Proportional to 121,338,086.40, 182,007,129.60 and 53,313,638.40

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Solution

The fourth proportional to 121,338,086.40, 182,007,129.60 and 53,313,638.40 is: 79,970,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,338,086.40 : 182,007,129.60 = 53,313,638.40 : x
  2. Step 2: Convert to fraction form
    121,338,086.40/182,007,129.60 = 53,313,638.40/x
  3. Step 3: Cross multiply
    121,338,086.40x = 182,007,129.60 × 53,313,638.40
  4. Step 4: Simplify right side
    121,338,086.40x = 9,703,462,293,716,336
  5. Step 5: Solve for x
    x = 9,703,462,293,716,336/121,338,086.40
  6. Step 6: Final answer
    x = 79,970,457.60

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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.