Home / 28,978,087,008,952-39,989,889,783,046-15,809,038,421,470

Finding the Fourth Proportional to 28,978,087,008,952, 39,989,889,783,046 and 15,809,038,421,470

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Solution

The fourth proportional to 28,978,087,008,952, 39,989,889,783,046 and 15,809,038,421,470 is: 21,816,543,785,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,978,087,008,952 : 39,989,889,783,046 = 15,809,038,421,470 : x
  2. Step 2: Convert to fraction form
    28,978,087,008,952/39,989,889,783,046 = 15,809,038,421,470/x
  3. Step 3: Cross multiply
    28,978,087,008,952x = 39,989,889,783,046 × 15,809,038,421,470
  4. Step 4: Simplify right side
    28,978,087,008,952x = 632,201,704,050,524,837,396,873,216
  5. Step 5: Solve for x
    x = 632,201,704,050,524,837,396,873,216/28,978,087,008,952
  6. Step 6: Final answer
    x = 21,816,543,785,489.47

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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.