Home / 70,875,664.40-106,431,461.40-38,985,846.80

Finding the Fourth Proportional to 70,875,664.40, 106,431,461.40 and 38,985,846.80

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Solution

The fourth proportional to 70,875,664.40, 106,431,461.40 and 38,985,846.80 is: 58,543,657.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,875,664.40 : 106,431,461.40 = 38,985,846.80 : x
  2. Step 2: Convert to fraction form
    70,875,664.40/106,431,461.40 = 38,985,846.80/x
  3. Step 3: Cross multiply
    70,875,664.40x = 106,431,461.40 × 38,985,846.80
  4. Step 4: Simplify right side
    70,875,664.40x = 4,149,320,648,840,513.50
  5. Step 5: Solve for x
    x = 4,149,320,648,840,513.50/70,875,664.40
  6. Step 6: Final answer
    x = 58,543,657.88

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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.