Home / 77,557,171,215.09-116,326,128,095.67-20,901,466,518.28

Finding the Fourth Proportional to 77,557,171,215.09, 116,326,128,095.67 and 20,901,466,518.28

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Solution

The fourth proportional to 77,557,171,215.09, 116,326,128,095.67 and 20,901,466,518.28 is: 31,349,604,859.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,557,171,215.09 : 116,326,128,095.67 = 20,901,466,518.28 : x
  2. Step 2: Convert to fraction form
    77,557,171,215.09/116,326,128,095.67 = 20,901,466,518.28/x
  3. Step 3: Cross multiply
    77,557,171,215.09x = 116,326,128,095.67 × 20,901,466,518.28
  4. Step 4: Simplify right side
    77,557,171,215.09x = 2,431,386,671,592,796,848,128
  5. Step 5: Solve for x
    x = 2,431,386,671,592,796,848,128/77,557,171,215.09
  6. Step 6: Final answer
    x = 31,349,604,859.23

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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.