Home / 15,689,620,940.09-21,651,497,966.63-8,552,877,312.47

Finding the Fourth Proportional to 15,689,620,940.09, 21,651,497,966.63 and 8,552,877,312.47

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Solution

The fourth proportional to 15,689,620,940.09, 21,651,497,966.63 and 8,552,877,312.47 is: 11,802,873,150.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,689,620,940.09 : 21,651,497,966.63 = 8,552,877,312.47 : x
  2. Step 2: Convert to fraction form
    15,689,620,940.09/21,651,497,966.63 = 8,552,877,312.47/x
  3. Step 3: Cross multiply
    15,689,620,940.09x = 21,651,497,966.63 × 8,552,877,312.47
  4. Step 4: Simplify right side
    15,689,620,940.09x = 185,182,605,739,688,919,040
  5. Step 5: Solve for x
    x = 185,182,605,739,688,919,040/15,689,620,940.09
  6. Step 6: Final answer
    x = 11,802,873,150.78

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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.