Home / 13,061,120.98-18,023,887.02-7,180,712.50

Finding the Fourth Proportional to 13,061,120.98, 18,023,887.02 and 7,180,712.50

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Solution

The fourth proportional to 13,061,120.98, 18,023,887.02 and 7,180,712.50 is: 9,909,130.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,061,120.98 : 18,023,887.02 = 7,180,712.50 : x
  2. Step 2: Convert to fraction form
    13,061,120.98/18,023,887.02 = 7,180,712.50/x
  3. Step 3: Cross multiply
    13,061,120.98x = 18,023,887.02 × 7,180,712.50
  4. Step 4: Simplify right side
    13,061,120.98x = 129,424,350,823,101.75
  5. Step 5: Solve for x
    x = 129,424,350,823,101.75/13,061,120.98
  6. Step 6: Final answer
    x = 9,909,130.39

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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.