Home / 3,015,061.78-4,160,802.18-1,638,416.92

Finding the Fourth Proportional to 3,015,061.78, 4,160,802.18 and 1,638,416.92

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Solution

The fourth proportional to 3,015,061.78, 4,160,802.18 and 1,638,416.92 is: 2,261,024.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015,061.78 : 4,160,802.18 = 1,638,416.92 : x
  2. Step 2: Convert to fraction form
    3,015,061.78/4,160,802.18 = 1,638,416.92/x
  3. Step 3: Cross multiply
    3,015,061.78x = 4,160,802.18 × 1,638,416.92
  4. Step 4: Simplify right side
    3,015,061.78x = 6,817,128,692,484.89
  5. Step 5: Solve for x
    x = 6,817,128,692,484.89/3,015,061.78
  6. Step 6: Final answer
    x = 2,261,024.55

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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.