Home / 28,978,087,008,954-39,989,889,783,048-15,809,038,421,472

Finding the Fourth Proportional to 28,978,087,008,954, 39,989,889,783,048 and 15,809,038,421,472

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Solution

The fourth proportional to 28,978,087,008,954, 39,989,889,783,048 and 15,809,038,421,472 is: 21,816,543,785,491.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,978,087,008,954 : 39,989,889,783,048 = 15,809,038,421,472 : x
  2. Step 2: Convert to fraction form
    28,978,087,008,954/39,989,889,783,048 = 15,809,038,421,472/x
  3. Step 3: Cross multiply
    28,978,087,008,954x = 39,989,889,783,048 × 15,809,038,421,472
  4. Step 4: Simplify right side
    28,978,087,008,954x = 632,201,704,050,636,437,827,092,480
  5. Step 5: Solve for x
    x = 632,201,704,050,636,437,827,092,480/28,978,087,008,954
  6. Step 6: Final answer
    x = 21,816,543,785,491.81

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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.