Home / 76,677,631,172.48-105,819,218,531.52-42,845,747,542.40

Finding the Fourth Proportional to 76,677,631,172.48, 105,819,218,531.52 and 42,845,747,542.40

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Solution

The fourth proportional to 76,677,631,172.48, 105,819,218,531.52 and 42,845,747,542.40 is: 59,129,415,619.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,677,631,172.48 : 105,819,218,531.52 = 42,845,747,542.40 : x
  2. Step 2: Convert to fraction form
    76,677,631,172.48/105,819,218,531.52 = 42,845,747,542.40/x
  3. Step 3: Cross multiply
    76,677,631,172.48x = 105,819,218,531.52 × 42,845,747,542.40
  4. Step 4: Simplify right side
    76,677,631,172.48x = 4,533,903,522,335,561,875,456
  5. Step 5: Solve for x
    x = 4,533,903,522,335,561,875,456/76,677,631,172.48
  6. Step 6: Final answer
    x = 59,129,415,619.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.