Home / 21,712,839.75-32,570,307.06-7,139,436.60

Finding the Fourth Proportional to 21,712,839.75, 32,570,307.06 and 7,139,436.60

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Solution

The fourth proportional to 21,712,839.75, 32,570,307.06 and 7,139,436.60 is: 10,709,499.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,712,839.75 : 32,570,307.06 = 7,139,436.60 : x
  2. Step 2: Convert to fraction form
    21,712,839.75/32,570,307.06 = 7,139,436.60/x
  3. Step 3: Cross multiply
    21,712,839.75x = 32,570,307.06 × 7,139,436.60
  4. Step 4: Simplify right side
    21,712,839.75x = 232,533,642,297,402.38
  5. Step 5: Solve for x
    x = 232,533,642,297,402.38/21,712,839.75
  6. Step 6: Final answer
    x = 10,709,499.31

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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.