Home / 13,023,038.20-17,970,307.14-7,220,353.72

Finding the Fourth Proportional to 13,023,038.20, 17,970,307.14 and 7,220,353.72

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Solution

The fourth proportional to 13,023,038.20, 17,970,307.14 and 7,220,353.72 is: 9,963,264.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,023,038.20 : 17,970,307.14 = 7,220,353.72 : x
  2. Step 2: Convert to fraction form
    13,023,038.20/17,970,307.14 = 7,220,353.72/x
  3. Step 3: Cross multiply
    13,023,038.20x = 17,970,307.14 × 7,220,353.72
  4. Step 4: Simplify right side
    13,023,038.20x = 129,751,974,007,841.56
  5. Step 5: Solve for x
    x = 129,751,974,007,841.56/13,023,038.20
  6. Step 6: Final answer
    x = 9,963,264.49

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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.