Home / 190,124,726.50-285,153,378.43-86,469,652.63

Finding the Fourth Proportional to 190,124,726.50, 285,153,378.43 and 86,469,652.63

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Solution

The fourth proportional to 190,124,726.50, 285,153,378.43 and 86,469,652.63 is: 129,689,146.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,124,726.50 : 285,153,378.43 = 86,469,652.63 : x
  2. Step 2: Convert to fraction form
    190,124,726.50/285,153,378.43 = 86,469,652.63/x
  3. Step 3: Cross multiply
    190,124,726.50x = 285,153,378.43 × 86,469,652.63
  4. Step 4: Simplify right side
    190,124,726.50x = 24,657,113,577,811,592
  5. Step 5: Solve for x
    x = 24,657,113,577,811,592/190,124,726.50
  6. Step 6: Final answer
    x = 129,689,146.87

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1.5x scale

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.