Home / 12,942,680.16-17,860,885.08-7,141,461.56

Finding the Fourth Proportional to 12,942,680.16, 17,860,885.08 and 7,141,461.56

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Solution

The fourth proportional to 12,942,680.16, 17,860,885.08 and 7,141,461.56 is: 9,855,209.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,680.16 : 17,860,885.08 = 7,141,461.56 : x
  2. Step 2: Convert to fraction form
    12,942,680.16/17,860,885.08 = 7,141,461.56/x
  3. Step 3: Cross multiply
    12,942,680.16x = 17,860,885.08 × 7,141,461.56
  4. Step 4: Simplify right side
    12,942,680.16x = 127,552,824,226,397.50
  5. Step 5: Solve for x
    x = 127,552,824,226,397.50/12,942,680.16
  6. Step 6: Final answer
    x = 9,855,209.48

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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.