Home / 21,275,137,985.60-31,912,706,978.40-9,665,632,193.60

Finding the Fourth Proportional to 21,275,137,985.60, 31,912,706,978.40 and 9,665,632,193.60

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Solution

The fourth proportional to 21,275,137,985.60, 31,912,706,978.40 and 9,665,632,193.60 is: 14,498,448,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,137,985.60 : 31,912,706,978.40 = 9,665,632,193.60 : x
  2. Step 2: Convert to fraction form
    21,275,137,985.60/31,912,706,978.40 = 9,665,632,193.60/x
  3. Step 3: Cross multiply
    21,275,137,985.60x = 31,912,706,978.40 × 9,665,632,193.60
  4. Step 4: Simplify right side
    21,275,137,985.60x = 308,456,487,955,346,423,808
  5. Step 5: Solve for x
    x = 308,456,487,955,346,423,808/21,275,137,985.60
  6. Step 6: Final answer
    x = 14,498,448,290.40

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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.