Home / 83,871,683.88-115,778,634.84-56,385,555.36

Finding the Fourth Proportional to 83,871,683.88, 115,778,634.84 and 56,385,555.36

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Solution

The fourth proportional to 83,871,683.88, 115,778,634.84 and 56,385,555.36 is: 77,836,074.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,871,683.88 : 115,778,634.84 = 56,385,555.36 : x
  2. Step 2: Convert to fraction form
    83,871,683.88/115,778,634.84 = 56,385,555.36/x
  3. Step 3: Cross multiply
    83,871,683.88x = 115,778,634.84 × 56,385,555.36
  4. Step 4: Simplify right side
    83,871,683.88x = 6,528,242,624,276,045
  5. Step 5: Solve for x
    x = 6,528,242,624,276,045/83,871,683.88
  6. Step 6: Final answer
    x = 77,836,074.37

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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.