Home / 9,419,982.60-12,999,814.74-5,290,343.40

Finding the Fourth Proportional to 9,419,982.60, 12,999,814.74 and 5,290,343.40

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Solution

The fourth proportional to 9,419,982.60, 12,999,814.74 and 5,290,343.40 is: 7,300,807.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419,982.60 : 12,999,814.74 = 5,290,343.40 : x
  2. Step 2: Convert to fraction form
    9,419,982.60/12,999,814.74 = 5,290,343.40/x
  3. Step 3: Cross multiply
    9,419,982.60x = 12,999,814.74 × 5,290,343.40
  4. Step 4: Simplify right side
    9,419,982.60x = 68,773,484,110,981.72
  5. Step 5: Solve for x
    x = 68,773,484,110,981.72/9,419,982.60
  6. Step 6: Final answer
    x = 7,300,807.98

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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.