Home / 28,605,825,139.86-39,475,725,413.13-15,745,190,130.95

Finding the Fourth Proportional to 28,605,825,139.86, 39,475,725,413.13 and 15,745,190,130.95

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Solution

The fourth proportional to 28,605,825,139.86, 39,475,725,413.13 and 15,745,190,130.95 is: 21,728,189,945.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,605,825,139.86 : 39,475,725,413.13 = 15,745,190,130.95 : x
  2. Step 2: Convert to fraction form
    28,605,825,139.86/39,475,725,413.13 = 15,745,190,130.95/x
  3. Step 3: Cross multiply
    28,605,825,139.86x = 39,475,725,413.13 × 15,745,190,130.95
  4. Step 4: Simplify right side
    28,605,825,139.86x = 621,552,802,186,748,624,896
  5. Step 5: Solve for x
    x = 621,552,802,186,748,624,896/28,605,825,139.86
  6. Step 6: Final answer
    x = 21,728,189,945.50

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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.