Home / 137,604,208.50-189,891,351.63-74,878,167.33

Finding the Fourth Proportional to 137,604,208.50, 189,891,351.63 and 74,878,167.33

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Solution

The fourth proportional to 137,604,208.50, 189,891,351.63 and 74,878,167.33 is: 103,330,534.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,604,208.50 : 189,891,351.63 = 74,878,167.33 : x
  2. Step 2: Convert to fraction form
    137,604,208.50/189,891,351.63 = 74,878,167.33/x
  3. Step 3: Cross multiply
    137,604,208.50x = 189,891,351.63 × 74,878,167.33
  4. Step 4: Simplify right side
    137,604,208.50x = 14,218,716,401,871,008
  5. Step 5: Solve for x
    x = 14,218,716,401,871,008/137,604,208.50
  6. Step 6: Final answer
    x = 103,330,534.41

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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.