Home / 27,687,583,367.89-38,208,366,985.45-15,644,335,603.69

Finding the Fourth Proportional to 27,687,583,367.89, 38,208,366,985.45 and 15,644,335,603.69

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Solution

The fourth proportional to 27,687,583,367.89, 38,208,366,985.45 and 15,644,335,603.69 is: 21,588,901,712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,687,583,367.89 : 38,208,366,985.45 = 15,644,335,603.69 : x
  2. Step 2: Convert to fraction form
    27,687,583,367.89/38,208,366,985.45 = 15,644,335,603.69/x
  3. Step 3: Cross multiply
    27,687,583,367.89x = 38,208,366,985.45 × 15,644,335,603.69
  4. Step 4: Simplify right side
    27,687,583,367.89x = 597,744,515,989,329,018,880
  5. Step 5: Solve for x
    x = 597,744,515,989,329,018,880/27,687,583,367.89
  6. Step 6: Final answer
    x = 21,588,901,712.62

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1.5x scale

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.