Home / 103,590,462.36-142,954,816.50-57,180,703.98

Finding the Fourth Proportional to 103,590,462.36, 142,954,816.50 and 57,180,703.98

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Solution

The fourth proportional to 103,590,462.36, 142,954,816.50 and 57,180,703.98 is: 78,909,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,590,462.36 : 142,954,816.50 = 57,180,703.98 : x
  2. Step 2: Convert to fraction form
    103,590,462.36/142,954,816.50 = 57,180,703.98/x
  3. Step 3: Cross multiply
    103,590,462.36x = 142,954,816.50 × 57,180,703.98
  4. Step 4: Simplify right side
    103,590,462.36x = 8,174,257,044,801,719
  5. Step 5: Solve for x
    x = 8,174,257,044,801,719/103,590,462.36
  6. Step 6: Final answer
    x = 78,909,359.59

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1.5x scale

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.