Home / 15,406,990.94-21,261,386.08-8,531,325.38

Finding the Fourth Proportional to 15,406,990.94, 21,261,386.08 and 8,531,325.38

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Solution

The fourth proportional to 15,406,990.94, 21,261,386.08 and 8,531,325.38 is: 11,773,084.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,990.94 : 21,261,386.08 = 8,531,325.38 : x
  2. Step 2: Convert to fraction form
    15,406,990.94/21,261,386.08 = 8,531,325.38/x
  3. Step 3: Cross multiply
    15,406,990.94x = 21,261,386.08 × 8,531,325.38
  4. Step 4: Simplify right side
    15,406,990.94x = 181,387,802,550,647.47
  5. Step 5: Solve for x
    x = 181,387,802,550,647.47/15,406,990.94
  6. Step 6: Final answer
    x = 11,773,084.27

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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.