Home / 12,985,460.76-17,925,675.66-7,760,312.76

Finding the Fourth Proportional to 12,985,460.76, 17,925,675.66 and 7,760,312.76

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Solution

The fourth proportional to 12,985,460.76, 17,925,675.66 and 7,760,312.76 is: 10,712,661.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985,460.76 : 17,925,675.66 = 7,760,312.76 : x
  2. Step 2: Convert to fraction form
    12,985,460.76/17,925,675.66 = 7,760,312.76/x
  3. Step 3: Cross multiply
    12,985,460.76x = 17,925,675.66 × 7,760,312.76
  4. Step 4: Simplify right side
    12,985,460.76x = 139,108,849,555,919.42
  5. Step 5: Solve for x
    x = 139,108,849,555,919.42/12,985,460.76
  6. Step 6: Final answer
    x = 10,712,661.81

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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.