Home / 21,391,792.71-29,521,342.19-12,099,180.93

Finding the Fourth Proportional to 21,391,792.71, 29,521,342.19 and 12,099,180.93

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Solution

The fourth proportional to 21,391,792.71, 29,521,342.19 and 12,099,180.93 is: 16,697,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,391,792.71 : 29,521,342.19 = 12,099,180.93 : x
  2. Step 2: Convert to fraction form
    21,391,792.71/29,521,342.19 = 12,099,180.93/x
  3. Step 3: Cross multiply
    21,391,792.71x = 29,521,342.19 × 12,099,180.93
  4. Step 4: Simplify right side
    21,391,792.71x = 357,184,060,421,803.88
  5. Step 5: Solve for x
    x = 357,184,060,421,803.88/21,391,792.71
  6. Step 6: Final answer
    x = 16,697,247.65

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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.