Home / 13,133,802.78-19,712,814.10-6,661,420.02

Finding the Fourth Proportional to 13,133,802.78, 19,712,814.10 and 6,661,420.02

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Solution

The fourth proportional to 13,133,802.78, 19,712,814.10 and 6,661,420.02 is: 9,998,272.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133,802.78 : 19,712,814.10 = 6,661,420.02 : x
  2. Step 2: Convert to fraction form
    13,133,802.78/19,712,814.10 = 6,661,420.02/x
  3. Step 3: Cross multiply
    13,133,802.78x = 19,712,814.10 × 6,661,420.02
  4. Step 4: Simplify right side
    13,133,802.78x = 131,315,334,496,278.28
  5. Step 5: Solve for x
    x = 131,315,334,496,278.28/13,133,802.78
  6. Step 6: Final answer
    x = 9,998,272.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.