Home / 15,406,719.16-21,261,012.68-8,531,053.60

Finding the Fourth Proportional to 15,406,719.16, 21,261,012.68 and 8,531,053.60

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Solution

The fourth proportional to 15,406,719.16, 21,261,012.68 and 8,531,053.60 is: 11,772,710.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,719.16 : 21,261,012.68 = 8,531,053.60 : x
  2. Step 2: Convert to fraction form
    15,406,719.16/21,261,012.68 = 8,531,053.60/x
  3. Step 3: Cross multiply
    15,406,719.16x = 21,261,012.68 × 8,531,053.60
  4. Step 4: Simplify right side
    15,406,719.16x = 181,378,838,763,359.62
  5. Step 5: Solve for x
    x = 181,378,838,763,359.62/15,406,719.16
  6. Step 6: Final answer
    x = 11,772,710.13

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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.