Home / 14,387,853.79-19,854,647.40-7,861,707.28

Finding the Fourth Proportional to 14,387,853.79, 19,854,647.40 and 7,861,707.28

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Solution

The fourth proportional to 14,387,853.79, 19,854,647.40 and 7,861,707.28 is: 10,848,833.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387,853.79 : 19,854,647.40 = 7,861,707.28 : x
  2. Step 2: Convert to fraction form
    14,387,853.79/19,854,647.40 = 7,861,707.28/x
  3. Step 3: Cross multiply
    14,387,853.79x = 19,854,647.40 × 7,861,707.28
  4. Step 4: Simplify right side
    14,387,853.79x = 156,091,426,006,413.06
  5. Step 5: Solve for x
    x = 156,091,426,006,413.06/14,387,853.79
  6. Step 6: Final answer
    x = 10,848,833.21

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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.