Home / 21,020,992.80-31,536,154.80-9,658,701.60

Finding the Fourth Proportional to 21,020,992.80, 31,536,154.80 and 9,658,701.60

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Solution

The fourth proportional to 21,020,992.80, 31,536,154.80 and 9,658,701.60 is: 14,490,196.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020,992.80 : 31,536,154.80 = 9,658,701.60 : x
  2. Step 2: Convert to fraction form
    21,020,992.80/31,536,154.80 = 9,658,701.60/x
  3. Step 3: Cross multiply
    21,020,992.80x = 31,536,154.80 × 9,658,701.60
  4. Step 4: Simplify right side
    21,020,992.80x = 304,598,308,824,607.69
  5. Step 5: Solve for x
    x = 304,598,308,824,607.69/21,020,992.80
  6. Step 6: Final answer
    x = 14,490,196.14

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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.