Home / 9,947,430.40-14,921,145.60-7,428,006.40

Finding the Fourth Proportional to 9,947,430.40, 14,921,145.60 and 7,428,006.40

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Solution

The fourth proportional to 9,947,430.40, 14,921,145.60 and 7,428,006.40 is: 11,142,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,947,430.40 : 14,921,145.60 = 7,428,006.40 : x
  2. Step 2: Convert to fraction form
    9,947,430.40/14,921,145.60 = 7,428,006.40/x
  3. Step 3: Cross multiply
    9,947,430.40x = 14,921,145.60 × 7,428,006.40
  4. Step 4: Simplify right side
    9,947,430.40x = 110,834,365,012,131.84
  5. Step 5: Solve for x
    x = 110,834,365,012,131.84/9,947,430.40
  6. Step 6: Final answer
    x = 11,142,009.60

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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.