Home / 11,705,160.40-16,153,002.31-6,478,178.74

Finding the Fourth Proportional to 11,705,160.40, 16,153,002.31 and 6,478,178.74

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Solution

The fourth proportional to 11,705,160.40, 16,153,002.31 and 6,478,178.74 is: 8,939,820.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,705,160.40 : 16,153,002.31 = 6,478,178.74 : x
  2. Step 2: Convert to fraction form
    11,705,160.40/16,153,002.31 = 6,478,178.74/x
  3. Step 3: Cross multiply
    11,705,160.40x = 16,153,002.31 × 6,478,178.74
  4. Step 4: Simplify right side
    11,705,160.40x = 104,642,036,151,812.89
  5. Step 5: Solve for x
    x = 104,642,036,151,812.89/11,705,160.40
  6. Step 6: Final answer
    x = 8,939,820.78

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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.